Term ends Apr 6, 2033 · High confidence
20-year base term ends Jun 28, 2031
Held by Camso Inc.
Filed Jun 28, 2011 as application 13/170,753 · Granted Mar 3, 2015
Base term plus 648 days of patent term adjustment (USPTO delay)
Today
2011
2033
Clock starts
Jun 28, 2011
Jun 28, 2011
Term ends
Apr 6, 2033
Apr 6, 2033
Granted
Mar 3, 2015
Mar 3, 2015
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
648
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
5
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 648 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Jun 28, 2011, when this application, 13/170,753, was filed | Jun 28, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +648 days, USPTO patent term adjustment record | Apr 6, 2033 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 6, 2033 | High confidence |
This family
| US 8,967,737 | this patent Apr 2033 | Apr 2033 |
| US 9,033,431 | In force Jan 2033 | Jan 2033 |
| US 10,272,959 | In force Jun 2031 | Jun 2031 |
| US 11,186,330 | In force Jan 2032 | Jan 2032 |
4 of 5 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 |
|---|---|---|---|
| Sep 14, 2011 Reel 26902, frame 141 | Zuchoski, Jeremie; Lussier, Alain; Boily, Patrice | Camoplast Solideal Inc. | Assignment of Assignor's Interest |
| Aug 14, 2013 Reel 31006, frame 511 | Camoplast Solideal Inc. | Canadian Imperial Bank of Commerce, as Agent | Security Agreement |
| Jun 26, 2019 Reel 50022, frame 767 | Canadian Imperial Bank of Commerce | Camso Inc. (Formerly Camoplast Solideal Inc.) | Release of Security Interest |
| May 9, 2025 Reel 71248, frame 617 | Camoplast Solideal Inc. | Camso Inc. | Change of Name |
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 2033
Term ends Apr 6, 2033.
Note
The 648 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
35
later US patents cite this one
That is top 25% of utility patents granted in 2015 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.