Also listed on Spigit, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Nov 7, 2031 · High confidence
20-year base term ends Mar 31, 2031
Held by Owen, Katharyn E
Filed Mar 31, 2011 as application 13/065,934 · Granted Dec 10, 2013
Base term plus 221 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
Mar 31, 2011
Mar 31, 2011
Term ends
Nov 7, 2031
Nov 7, 2031
Granted
Dec 10, 2013
Dec 10, 2013
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
221
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.
This patent's term runs 221 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. 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 Mar 31, 2011, when this application, 13/065,934, was filed | Mar 31, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +221 days, USPTO patent term adjustment record | Nov 7, 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 | Nov 7, 2031 | High confidence |
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 |
|---|---|---|---|
| Mar 31, 2011 Reel 26171, frame 780 | Dabke, Padmanabh | Spigit Inc. | Assignment of Assignor's Interest |
| Sep 11, 2013 Reel 31207, frame 238 | Spigit, Inc. | Silicon Valley Bank | Security Agreement |
| Sep 16, 2013 Reel 31217, frame 710 | Spigit, Inc. | Partners for Growth IV, L.P. | Security Agreement |
| Oct 30, 2013 Reel 31509, frame 547 | Spigit, Inc. | Mindjet LLC | Assignment of Assignor's Interest |
| Nov 7, 2014 Reel 34130, frame 306 | Mindjet LLC | WF Fund IV Limited Partnership | Security Interest |
| May 8, 2015 Reel 35599, frame 528 | Mindjet LLC | Mindjet US Inc. | Assignment of Assignor's Interest |
| Sep 11, 2015 Reel 36588, frame 423 | Mindjet US Inc. | Spigit, Inc. | Change of Name |
| Aug 8, 2016 Reel 39373, frame 659 | Silicon Valley Bank | Spigit, Inc. | Release of Security Interest |
| Aug 8, 2016 Reel 39373, frame 715 | WF Fund IV Limited Partnership (C/O/B as Wellington Financial LP and Wellington Financial Fund IV | Mindjet LLC | Release of Security Interest |
| Dec 4, 2018 Reel 47673, frame 18 | Partners for Growth IV, L.P. | Spigit, Inc. | Release of Security Interest |
| Jan 28, 2019 Reel 48152, frame 263 | Spigit, Inc. | Ares Capital Corporation | Security Interest |
| Jan 30, 2020 Reel 51672, frame 245 | Ares Capital Corporation | Spigit, Inc. | Release of Security Interest |
| Dec 17, 2020 Reel 54962, frame 236 | Planview, Inc.; Spigit, Inc.; Troux Technologies, Inc. | UBS AG, Stamford Branch | First Lien Security Agreement |
| Dec 18, 2020 Reel 54804, frame 543 | Planview, Inc.; Spigit, Inc.; Troux Technologies, Inc. | UBS AG, Stamford Branch | Second Lien Security Agreement |
| Dec 23, 2020 Reel 54740, frame 815 | Ares Capital Corporation | Spigit, Inc. | Release of Security Interest |
| Oct 31, 2023 Reel 65407, frame 524 | Spigit, Inc. | Owen, Katharyn E | Assignment of Assignor's Interest |
| Oct 2, 2026 Reel 76627, frame 68 | Spigit, Inc. | Planview, Inc. | Corrective Assignment to Correct the Receiving Party Dataname: Planview, Inc. Previously Recorded on Reel 65407 Frame 524. Assignor(S) Hereby Confirms the Assignment. |
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
Nov 2031
Term ends Nov 7, 2031. No further fees fall due before then
Note
The 221 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is above the median of utility patents granted in 2013 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.