Term ends Feb 4, 2034 · High confidence
20-year base term ends Jul 7, 2034
Held by AGC Inc.
Filed Oct 10, 2019 as application 16/597,899 · Granted Apr 13, 2021
Base term, 20 years from filing · capped by a resolved terminal disclaimer
Today
2014
2034
Clock starts
Jul 7, 2014
Jul 7, 2014
Term ends
Feb 4, 2034
Feb 4, 2034
Granted
Apr 13, 2021
Apr 13, 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 10,358,591.
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.
8
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 Jul 7, 2014, when application PCT/JP2014/068084, the earliest non-provisional in its chain, was filed (this one was filed Oct 10, 2019) | Jul 7, 2034 | 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 10,358,591) | capped to Feb 4, 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 | Feb 4, 2034 | High confidence |
This family
| US 9,828,537 | In force Feb 2034 | Feb 2034 |
| US 10,472,551 | In force no later than Jul 2034 | no later than Jul 2034 |
| US 10,975,280 | this patent Feb 2034 | Feb 2034 |
| US 11,421,136 | In force Feb 2034 | Feb 2034 |
| US 11,447,676 | In force Jul 2034 | Jul 2034 |
| US 11,905,455 | In force no later than Jul 2034 | no later than Jul 2034 |
| Application 18/402,811 | Pending not computed | not computed |
7 of 8 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
Feb 2034
Term ends Feb 4, 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 10,358,591.
Citations
15
later US patents cite this one
That is top 10% 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.