Collateral for a security interest recorded May 2, 2013 (HSBC Bank USA, National Association).
Term ends Apr 20, 2031 · High confidence
20-year base term ends Nov 18, 2028
Held by Semtech Canada Inc.
Filed Nov 18, 2008 as application 12/272,851 · Granted Jan 8, 2013
Base term plus 883 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Nov 18, 2008
Nov 18, 2008
Term ends
Apr 20, 2031
Apr 20, 2031
Granted
Jan 8, 2013
Jan 8, 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
883
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.
2
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 883 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 Nov 18, 2008, when this application, 12/272,851, was filed | Nov 18, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +883 days, USPTO patent term adjustment record | Apr 20, 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 | Apr 20, 2031 | High confidence |
This family
| US 8,351,493 | this patent Apr 2031 | Apr 2031 |
| US 8,755,427 | In force Nov 2028 | Nov 2028 |
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 |
|---|---|---|---|
| Nov 18, 2008 Reel 21847, frame 695 | Shakiba, Hossein; Shashaani, Mansour | Gennum Corporation | Assignment of Assignor's Interest |
| Jun 25, 2012 Reel 28436, frame 762 | Gennum Corporation | Semtech Canada Inc. | Merger |
| May 2, 2013 Reel 30341, frame 99 | Semtech Corporation; Semtech New York Corporation; Sierra Monolithics, Inc. | HSBC Bank USA, National Association | Security Agreement |
| Nov 17, 2016 Reel 40646, frame 799 | Semtech Corporation; Semtech New York Corporation; Sierra Monolithics, Inc.; Semtech Ev, Inc.; Triune Systems, L.l.c.; Triune IP, LLC | HSBC Bank USA, National Association, as Administrative Agent | Security Interest |
| Feb 17, 2023 Reel 62781, frame 544 | HSBC Bank USA, National Association, as Resigning Agent | JPMorgan Chase Bank, N.A., as Successor Agent | Assignment of Patent Security Interest Previously Recorded at Reel/Frame (040646/0799) |
| Jul 8, 2026 Reel 76304, frame 621 | Semtech Corporation; Semtech Photonics Corporation; Sierra Monolithics, Inc.; Sierra Wireless America, Inc.; Triune Systems, L.l.c.; Triune IP, LLC | Morgan Stanley Senior Funding, Inc. | Security Interest |
| Jul 8, 2026 Reel 76364, frame 527 | Jpmorgan Chase Bank, N.a. | Semtech Corporation; Sierra Monolithics, Inc.; Semtech Ev, Inc.; Triune Systems, L.l.c.; Triune IP, LLC; Semtech New York Corporation | Release of Security 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
Apr 2031
Term ends Apr 20, 2031. No further fees fall due before then
Note
The 883 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
15
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.