Also listed on IPR Licensing, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jul 20, 2027 · High confidence
20-year base term ended Jan 22, 2023
Filed Jan 22, 2003 as application 10/350,309 · Granted Nov 27, 2012
Base term plus 1640 days of patent term adjustment (USPTO delay)
Today
2003
2027
Clock starts
Jan 22, 2003
Jan 22, 2003
Term ends
Jul 20, 2027
Jul 20, 2027
Granted
Nov 27, 2012
Nov 27, 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
1,640
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 1640 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 22, 2003, when this application, 10/350,309, was filed | Jan 22, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1640 days, USPTO patent term adjustment record | Jul 20, 2027 | 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 | Jul 20, 2027 | High confidence |
This family
| US 8,320,298 | this patent Jul 2027 | Jul 2027 |
| US 9,999,043 | Term ended Oct 2023 | Oct 2023 |
| US 10,708,909 | Term ended Sep 2023 | Sep 2023 |
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 |
|---|---|---|---|
| May 12, 2003 Reel 14050, frame 491 | Johnson, Kevin P.; Nelson, George Rodney, JR. | Tantivy Communications, Inc. | Assignment of Assignor's Interest |
| Jul 24, 2003 Reel 14289, frame 207 | Tantivy Communications, Inc. | Ipr Holdings Delaware, Inc. | Security Interest |
| Feb 19, 2004 Reel 14351, frame 777 | InterDigital Acquisition Corporation | InterDigital Patent Corporation | Assignment of Assignor's Interest |
| Feb 26, 2004 Reel 15000, frame 141 | Tantivy Communications, Inc. | InterDigital Acquisition Corp. | Assignment of Assignor's Interest |
| Feb 26, 2004 Reel 15000, frame 577 | InterDigital Acquisition Corp. | InterDigital Patent Corporation | Merger |
| Mar 10, 2004 Reel 14420, frame 435 | InterDigital Patent Corporation | Ipr Licensing, Inc. | Assignment of Assignor's Interest |
| Sep 29, 2005 Reel 16846, frame 499 | Cornett, JR., John B. | Tantivy Communications, Inc. | Security Interest |
| Jun 12, 2024 Reel 67706, frame 517 | Ipr Licensing, Inc. | InterDigital Patent Holdings, Inc. | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jul 2027
Term ends Jul 20, 2027. No further fees fall due before then
Note
The 1640 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 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.