Term ends Jan 14, 2034 · High confidence
20-year base term ends Jun 22, 2035
Held by Carbon, Inc.
Filed Apr 26, 2018 as application 15/963,550 · Granted May 12, 2020
Base term, 20 years from filing · capped by a resolved terminal disclaimer
Today
2015
2035
Clock starts
Jun 22, 2015
Jun 22, 2015
Term ends
Jan 14, 2034
Jan 14, 2034
Granted
May 12, 2020
May 12, 2020
base term
after the term ends
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 10,350,823, US 10,639,844, US 11,440,266, US 9,676,963.
1 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.
9
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 3 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 Jun 22, 2015, when application PCT/US2015/036946, the earliest non-provisional in its chain, was filed (this one was filed Apr 26, 2018) | Jun 22, 2035 | 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 10,350,823, US 10,639,844, US 11,440,266, US 9,676,963) | capped to Jan 14, 2034 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 14, 2034 | High confidence |
This family
| Application PCT/US2015/036946 | PCT application no patent term | no patent term |
| US 9,453,142 | In force Jun 2035 | Jun 2035 |
| US 9,982,164 | In force Jun 2035 | Jun 2035 |
| US 10,647,879 | this patent Jan 2034 | Jan 2034 |
| US 10,899,868 | In force Jun 2035 | Jun 2035 |
| US 11,312,084 | In force Jan 2034 | Jan 2034 |
| US 11,707,893 | In force Jun 2035 | Jun 2035 |
| US 12,172,382 | In force Jun 2035 | Jun 2035 |
8 of 9 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
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
Jan 2034
Term ends Jan 14, 2034. Maintenance fees still fall due before then
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,350,823, US 10,639,844, US 11,440,266, US 9,676,963.
Citations
41
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
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.