Term ends Jan 7, 2031 · High confidence
20-year base term ends Jan 9, 2029
Held by InterDigital CE Patent Holdings
Filed Jan 9, 2009 as application 12/351,785 · Granted Apr 10, 2012
Base term plus 728 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Jan 9, 2009
Jan 9, 2009
Term ends
Jan 7, 2031
Jan 7, 2031
Granted
Apr 10, 2012
Apr 10, 2012
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
728
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.
3
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 728 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 Jan 9, 2009, when this application, 12/351,785, was filed | Jan 9, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +728 days, USPTO patent term adjustment record | Jan 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 | Jan 7, 2031 | High confidence |
This family
| US 8,155,207 | this patent Jan 2031 | Jan 2031 |
| US 9,521,420 | In force Jan 2029 | Jan 2029 |
2 of 3 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Oct 12, 2009 Reel 23356, frame 516 | Rodriguez, Arturo A.; Au, James; De Lameillieure, Jan; Beheydt, Samie | Cisco Technology, Inc. | Assignment of Assignor's Interest |
| Apr 12, 2016 Reel 38249, frame 647 | Cisco Technology, Inc. | Tech 5 | Assignment of Assignor's Interest |
| Jun 26, 2019 Reel 49601, frame 616 | Tech 5 | Thomson Licensing | Merger |
| Jun 26, 2019 Reel 49603, frame 399 | Thomson Licensing | InterDigital CE Patent Holdings | Assignment of Assignor's Interest |
| Jun 9, 2021 Reel 58043, frame 1 | Cisco Technology, Inc. | Tech 5 SAS | Corrective Assignment to Correct the Patent 7523479 Needs to Be Included, Was Accidentally Missed When Recording Assignment Previously Recorded on Reel 049603 Frame 0001. Assignor(S) Hereby Confirms the Need to Include Patent 7523479 in the Assignment. Was Accidentally Missed on Last Recording. |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Jan 2031
Term ends Jan 7, 2031. No further fees fall due before then
Note
The 728 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
57
later US patents cite this one
That is top 25% of utility patents granted in 2012 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.