Term ends Feb 4, 2034 · High confidence
20-year base term ends Jul 7, 2034
Held by AGC Inc.
Filed Nov 19, 2015 as application 14/946,037 · Granted Nov 28, 2017
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
Nov 28, 2017
Nov 28, 2017
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 9,624,413.
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.
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. 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 Jul 7, 2014, when application PCT/JP2014/068084, the earliest non-provisional in its chain, was filed (this one was filed Nov 19, 2015) | 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 9,624,413) | capped to Feb 4, 2034 | 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 | Feb 4, 2034 | High confidence |
This family
| US 9,828,537 | this patent Feb 2034 | Feb 2034 |
| US 10,472,551 | In force no later than Jul 2034 | no later than Jul 2034 |
| US 10,975,280 | In force 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.
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 |
|---|---|---|---|
| Nov 19, 2015 Reel 37090, frame 504 | Fukushima, Masato | Asahi Glass Company, Limited | Assignment of Assignor's Interest |
| Aug 7, 2018 Reel 46730, frame 786 | Asahi Glass Company, Limited | AGC 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
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 9,624,413.
Citations
75
later US patents cite this one
That is top 5% of utility patents granted in 2017 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.