Also listed on Intellectual Ventures Assets 186 LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 5, 2029 · High confidence
20-year base term ended Jun 23, 2025
Held by Accessify, LLC
Filed Jun 23, 2005 as application 11/159,205 · Granted Apr 19, 2016
Base term plus 1626 days of patent term adjustment (USPTO delay)
Today
2005
2029
Clock starts
Jun 23, 2005
Jun 23, 2005
Term ends
Dec 5, 2029
Dec 5, 2029
Granted
Apr 19, 2016
Apr 19, 2016
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
1,626
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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 1626 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Jun 23, 2005, when this application, 11/159,205, was filed | Jun 23, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1626 days, USPTO patent term adjustment record | Dec 5, 2029 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 5, 2029 | 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 |
|---|---|---|---|
| Jan 21, 2009 Reel 22127, frame 727 | Idelix Software Inc. | Noregin Assets N.v., L.l.c. | Assignment of Assignor's Interest |
| Feb 4, 2009 Reel 22207, frame 784 | Fraser, Douglas | Idelix Software Inc. | Assignment of Assignor's Interest |
| Dec 6, 2015 Reel 37220, frame 255 | Noregin Assets N.v., L.l.c. | Callahan Cellular L.L.C. | Merger |
| Feb 12, 2023 Reel 62708, frame 463 | Callahan Cellular L.L.C. | Intellectual Ventures Assets 186 LLC | Assignment of Assignor's Interest |
| Mar 23, 2023 Reel 63155, frame 300 | Mind Fusion, LLC | Intellectual Ventures Assets 186 LLC | Security Interest |
| Jul 13, 2023 Reel 64271, frame 1 | Intellectual Ventures Assets 186 LLC | Mind Fusion, LLC | Assignment of Assignor's Interest |
| Jul 21, 2023 Reel 64357, frame 642 | Mind Fusion, LLC | Accessify, LLC | Assignment of Assignor's Interest |
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
Dec 2029
Term ends Dec 5, 2029. Maintenance fees still fall due before then
Note
The 1626 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
47
later US patents cite this one
That is top 10% of utility patents granted in 2016 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.