Term ends no later than Sep 4, 2032 · Medium confidence
20-year base term ends Dec 9, 2030
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Held by Xilinx, Inc.
Filed Jan 30, 2013 as application 13/754,792 · Granted Dec 22, 2020
Base term plus 635 days of patent term adjustment (USPTO delay)
Today
2010
2032
Clock starts
Dec 9, 2010
Dec 9, 2010
Ends no later than
Sep 4, 2032
Sep 4, 2032
Granted
Dec 22, 2020
Dec 22, 2020
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
635
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
20
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 635 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 1 of 2 maintenance fees is paid so far. Confidence: Medium. 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 9, 2010, when application 12/964,642, the earliest non-provisional in its chain, was filed (this one was filed Jan 30, 2013) | Dec 9, 2030 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +635 days, USPTO patent term adjustment record | Sep 4, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | no later than Sep 4, 2032 | Medium confidence |
This family
| US 8,996,644 | In force Jul 2033 | Jul 2033 |
| Application 61/513,108 | Provisional application no patent term | no patent term |
| US 9,258,390 | In force Jul 2034 | Jul 2034 |
| US 9,003,053 | In force Apr 2033 | Apr 2033 |
| US 9,600,429 | In force Oct 2033 | Oct 2033 |
| US 10,873,613 | this patent no later than Sep 2032 | no later than Sep 2032 |
| US 9,674,318 | In force Nov 2031 | Nov 2031 |
| US 9,880,964 | In force Apr 2032 | Apr 2032 |
8 of 20 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 |
|---|---|---|---|
| Feb 26, 2013 Reel 29880, frame 584 | Pope, Steven L.; Riddoch, David J. | Solarflare Communications, Inc. | Assignment of Assignor's Interest |
| Mar 7, 2017 Reel 41902, frame 527 | Solarflare Communications, Inc. | Ally Bank | Security Interest |
| Jul 31, 2019 Reel 49918, frame 440 | Ally Bank | Solarflare Communications, Inc. | Release of Intellectual Property Security Agreement |
| Nov 25, 2019 Reel 51108, frame 209 | Solarflare Communications, Inc. | 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
Sep 2032
Term ends no later than Sep 4, 2032. Maintenance fees still fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 635 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Sep 4, 2032. We will not guess the cap.
Citations
43
later US patents cite this one
That is top 5% of utility patents granted in 2020 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
This computed term ends no later than the date shown; an unresolved terminal disclaimer may end it earlier. 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.