Term ends Dec 21, 2026 · High confidence
20-year base term ended Dec 21, 2024
Held by Xilinx, Inc.
Filed Dec 21, 2004 as application 11/019,735 · Granted Jul 23, 2013
Base term plus 1509 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2004
2026
Clock starts
Dec 21, 2004
Dec 21, 2004
Term ends
Dec 21, 2026
Dec 21, 2026
Granted
Jul 23, 2013
Jul 23, 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
1,509
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,472,155, US 7,480,690.
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.
15
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 1509 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Dec 21, 2004, when this application, 11/019,735, was filed | Dec 21, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1509 days, USPTO patent term adjustment record | Feb 7, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,472,155, US 7,480,690) | capped to Dec 21, 2026 | 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 | Dec 21, 2026 | High confidence |
This family
| US 7,472,155 | In force Jan 2027 | Jan 2027 |
| US 8,495,122 | this patent Dec 2026 | Dec 2026 |
| US 7,467,175 | In force Dec 2026 | Dec 2026 |
| US 7,467,177 | In force Dec 2026 | Dec 2026 |
| US 7,480,690 | In force Dec 2026 | Dec 2026 |
| US 7,882,165 | In force Aug 2028 | Aug 2028 |
| US 7,865,542 | In force Jun 2028 | Jun 2028 |
| US 7,853,634 | In force May 2028 | May 2028 |
8 of 15 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 |
|---|---|---|---|
| Dec 21, 2004 Reel 16124, frame 324 | Simkins, James M.; Young, Steven P.; Wong, Jennifer; New, Bernard J.; Ching, Alvin Y. | Xilinx, 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
Dec 2026
Term ends Dec 21, 2026. No further fees fall due before then
Note
The 1509 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 7,472,155, US 7,480,690.
Citations
9
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.