Also listed on Storcentric, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Feb 27, 2031 · Medium confidence
20-year base term ends Dec 23, 2029
Why Medium: A parent in the chain could not be resolved.
Held by Nexsan UK Ltd.
Filed Apr 30, 2012 as application 13/459,905 · Granted Mar 10, 2015
Base term plus 431 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Dec 23, 2009
Dec 23, 2009
Term ends
Feb 27, 2031
Feb 27, 2031
Granted
Mar 10, 2015
Mar 10, 2015
base term
patent term adjustment
fee events
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
431
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
2
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term runs 431 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: Medium. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Dec 23, 2009, when application 12/646,575, the earliest non-provisional in its chain, was filed (this one was filed Apr 30, 2012); a parent in its chain could not be resolved (the next row) | Dec 23, 2029 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +431 days, USPTO patent term adjustment record | Feb 27, 2031 | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 27, 2031 | Medium confidence |
This family
| US 8,191,841 | In force Aug 2030 | Aug 2030 |
| US 8,976,530 | this patent Feb 2031 | Feb 2031 |
The applications whose file history this site holds. The family may have others.
Assignments
Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jul 19, 2013 Reel 30837, frame 390 | Jeffery, Alan; Randall, Andrew Paul George; Belcher, David Ian; Bryers, Alastair; Freeman, Stephen | Nexsan Technologies Limited | Assignment of Assignor's Interest |
| Aug 17, 2018 Reel 46845, frame 495 | Drobo, Inc.; Nexsan Corporation; Nexsan Technologies Incorporated; Connected Data, Inc.; Nexsan Technologies Limited; Nexsan Technologies Canada Inc.; Drobo Limited | Gordon Brothers Finance Company, as Agent | Short Form Intellectual Property Security Agreement |
| Feb 19, 2020 reel/frame not recorded | Connected Data, Inc.; Drobo, Inc.; Nexsan Corporation; Nexsan Technologies Incorporated; Retrospect, Inc.; Storcentric, Inc. | Newlight Capital, LLC | Security Interest |
| Feb 19, 2020 reel/frame not recorded | Connected Data, Inc.; Drobo, Inc.; Nexsan Corporation; Nexsan Technologies Incorporated; Retrospect, Inc.; Storcentric, Inc. | Umb Bank, National Association, as Trustee | Security Interest |
| Feb 19, 2020 reel/frame not recorded | Gordon Brothers Finance Co. | Storcentric, Inc. | Release of Security Interest |
| Feb 19, 2020 reel/frame not recorded | Gordon Brothers Finance Co. | Drobo, Inc. | Release of Security Interest |
| Feb 19, 2020 reel/frame not recorded | Gordon Brothers Finance Co. | Nexsan Corporation | Release of Security Interest |
| Feb 19, 2020 reel/frame not recorded | Gordon Brothers Finance Co. | Nexsan Technologies Incorporated | Release of Security Interest |
| Feb 19, 2020 reel/frame not recorded | Gordon Brothers Finance Co. | Connected Data, Inc. | Release of Security Interest |
| Feb 19, 2020 reel/frame not recorded | Gordon Brothers Finance Co. | Nexsan Technologies Limited | Release of Security Interest |
| Feb 19, 2020 reel/frame not recorded | Gordon Brothers Finance Co. | Nexsan Technologies Canada Inc. | Release of Security Interest |
| Feb 19, 2020 Reel 51860, frame 839 | Storcentric, Inc.; Connected Data, Inc.; Drobo, Inc.; Nexsan Technologies Incorporated; Nexsan Corporation; Retrospect, Inc. | Newlight Capital, LLC; Umb Bank, National Association, as Trustee | Security Interest |
| Feb 19, 2020 Reel 51864, frame 774 | Gordon Brothers Finance Co. | Storcentric, Inc.; Drobo, Inc.; Nexsan Corporation; Nexsan Technologies Incorporated; Connected Data, Inc.; Nexsan Technologies Limited; Nexsan Technologies Canada Inc. | Release of Security Interest |
| Aug 10, 2021 reel/frame not recorded | Connected Data, Inc.; Drobo, Inc.; Nexsan Corporation; Nexsan Technologies Incorporated; Retrospect, Inc.; Storcentric, Inc. | Newlight Capital, LLC | Corrective Assignment to Correct the Application Number: 13532559 Previously Recorded at Reel: 051860 Frame: 0839. Assignor(S) Hereby Confirms the Assignment. |
| Aug 10, 2021 reel/frame not recorded | Connected Data, Inc.; Drobo, Inc.; Nexsan Corporation; Nexsan Technologies Incorporated; Retrospect, Inc.; Storcentric, Inc. | Umb Bank, National Association, as Trustee | Corrective Assignment to Correct the Application Number: 13532559 Previously Recorded at Reel: 051860 Frame: 0839. Assignor(S) Hereby Confirms the Assignment. |
| Aug 10, 2021 Reel 57156, frame 743 | Storcentric, Inc.; Connected Data, Inc.; Drobo, Inc.; Nexsan Technologies Incorporated; Nexsan Corporation; Retrospect, Inc. | Newlight Capital, LLC; Umb Bank, National Association, as Trustee | Corrective Assignment to Correct the Application Number: 13532559 Previously Recorded at Reel: 051860 Frame: 0839. Assignor(S) Hereby Confirms the Assignment. |
| Apr 24, 2023 reel/frame not recorded | Newlight Capital, LLC; Umb Bank, National Association | Storcentric, Inc. | Release of Security Interest |
| Apr 24, 2023 reel/frame not recorded | Newlight Capital, LLC; Umb Bank, National Association | Connected Data, Inc. | Release of Security Interest |
| Apr 24, 2023 reel/frame not recorded | Newlight Capital, LLC; Umb Bank, National Association | Drobo, Inc. | Release of Security Interest |
| Apr 24, 2023 reel/frame not recorded | Newlight Capital, LLC; Umb Bank, National Association | Nexsan Technologies Incorporated | Release of Security Interest |
| Apr 24, 2023 reel/frame not recorded | Newlight Capital, LLC; Umb Bank, National Association | Nexsan Corporation | Release of Security Interest |
| Apr 24, 2023 reel/frame not recorded | Newlight Capital, LLC; Umb Bank, National Association | Retrospect, Inc. | Release of Security Interest |
| Apr 24, 2023 Reel 63416, frame 914 | Storcentric, Inc.; Drobo, Inc.; Nexsan Corporation; Nexsan Technologies Incorporated; VS Acquisition Company, LLC; Connected Data, Inc.; Retrospect, Inc. | Storcentric Dip Lender, LLC | Assignment of Assignor's Interest |
| Apr 24, 2023 Reel 63414, frame 816 | Newlight Capital, LLC; Umb Bank, National Association | Storcentric, Inc.; Connected Data, Inc.; Drobo, Inc.; Nexsan Technologies Incorporated; Nexsan Corporation; Retrospect, Inc. | Release of Security Interest |
| Jan 19, 2024 Reel 66355, frame 308 | Nexsan Technologies Limited | Blueprint Software Systems UK Ltd. | Assignment of Assignor's Interest |
| Jan 19, 2024 Reel 66356, frame 331 | Blueprint Software Systems UK Ltd. | Nexsan UK Ltd. | Change of Name |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
What's changing
Feb 2031
Term ends Feb 27, 2031. No further fees fall due before then
Note
The 431 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
19
later US patents cite this one
That is top 25% of utility patents granted in 2015 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.