Term ends Jun 28, 2031 · High confidence
20-year base term ends Mar 4, 2036
Held by Camso Inc.
Filed Oct 4, 2017 as application 15/724,733 · Granted Jun 29, 2021
USPTO first gave this application the number US 10,737,736 and withdrew it before it issued. That number now leads here.
Base term, 20 years from filing · capped by a resolved terminal disclaimer
Today
2016
2036
Clock starts
Mar 4, 2016
Mar 4, 2016
Term ends
Jun 28, 2031
Jun 28, 2031
Granted
Jun 29, 2021
Jun 29, 2021
base term
after the term ends
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
None
Term adjustment
No prosecution delay on this record.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,272,959.
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.
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 2 maintenance fees is 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 Mar 4, 2016, when application PCT/CA2016/050234, the earliest non-provisional in its chain, was filed (this one was filed Oct 4, 2017) | Mar 4, 2036 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,272,959) | capped to Jun 28, 2031 | High 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 | Jun 28, 2031 | High confidence |
This family
| US 11,167,810 | In force May 2037 | May 2037 |
| US 11,046,377 | this patent Jun 2031 | Jun 2031 |
| US 11,897,558 | In force Sep 2037 | Sep 2037 |
| Application 17/521,799 | Abandoned not computed | not computed |
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 |
|---|---|---|---|
| Feb 5, 2021 Reel 55169, frame 588 | Boily, Patrice | Camso Inc. | Assignment of Assignor's Interest |
| Feb 5, 2021 Reel 55169, frame 603 | Bergeron, Matthieu; Richard, Simon; Laperle, Ghislain | Camso 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.
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Alerts on its grants, lapses and transfers.
What's changing
Jun 2031
Term ends Jun 28, 2031. Maintenance fees still fall due before then
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,272,959.
Citations
26
later US patents cite this one
That is top 5% of utility patents granted in 2021 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.