Term ends Sep 21, 2030 · High confidence
20-year base term ends Jul 30, 2029
Held by Calix, Inc.
Filed Jan 30, 2012 as application 13/361,433 · Granted Oct 28, 2014
Base term plus 418 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
Jul 30, 2009
Jul 30, 2009
Term ends
Sep 21, 2030
Sep 21, 2030
Granted
Oct 28, 2014
Oct 28, 2014
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
418
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 418 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 Jul 30, 2009, when application 12/512,239, the earliest non-provisional in its chain, was filed (this one was filed Jan 30, 2012) | Jul 30, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +418 days, USPTO patent term adjustment record | Sep 21, 2030 | 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 | Sep 21, 2030 | High confidence |
This family
| US 8,341,725 | In force Jul 2031 | Jul 2031 |
| US 8,875,233 | this patent Sep 2030 | Sep 2030 |
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 |
|---|---|---|---|
| Jan 30, 2012 Reel 27618, frame 952 | Baykal, Berkay; Butler, Duane M.; Conner, Michael W.; Missett, Shaun Noel | Calix, Inc. | Assignment of Assignor's Interest |
| Jul 29, 2013 Reel 30899, frame 597 | Calix, Inc. | Bank of America, N.A., as Administrative Agent | Security Agreement |
| Aug 9, 2017 Reel 43495, frame 424 | Calix, Inc. | Silicon Valley Bank | Security Interest |
| Aug 9, 2017 Reel 43494, frame 549 | Bank of America, N.A., as Administrative Agent for Lenders | Calix, Inc. | Release of Security Interest |
| Jan 27, 2020 Reel 51714, frame 883 | Silicon Valley Bank | Calix, Inc. | Release of Security Interest in Intellectual Property |
| Jan 28, 2020 Reel 51719, frame 348 | Calix, Inc. | Bank of America, N.A., as Agent | Security Interest |
| Apr 18, 2022 Reel 59802, frame 579 | Bank Of America, N.a. | Calix, Inc. | Release of Security Interest |
| May 11, 2022 Reel 59929, frame 453 | Bank Of America, N.a. | Calix, Inc. | 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
Sep 2030
Term ends Sep 21, 2030. No further fees fall due before then
Note
The 418 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
105
later US patents cite this one
That is top 5% of utility patents granted in 2014 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.