Term ends Dec 18, 2035 · High confidence
20-year base term ends Dec 18, 2035
Held by AGC Inc.
Filed Dec 18, 2015 as application 14/975,286 · Granted Mar 26, 2019
Base term, 20 years from filing
Today
2015
2035
Clock starts
Dec 18, 2015
Dec 18, 2015
Term ends
Dec 18, 2035
Dec 18, 2035
Granted
Mar 26, 2019
Mar 26, 2019
base term
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.
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.
44
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. 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 Dec 18, 2015, when this application, 14/975,286, was filed | Dec 18, 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 | 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 | Dec 18, 2035 | High confidence |
This family
| US 7,107,729 | Term ended Nov 2021 | Nov 2021 |
| US 6,761,201 | Term ended Oct 2022 | Oct 2022 |
| US 7,891,153 | Lapsed on the fee record Feb 2019 | Feb 2019 |
| US 7,316,759 | Term ended Nov 2023 | Nov 2023 |
| Application 11/013,700 | Abandoned not computed | not computed |
| US 8,281,527 | Term ended no later than Nov 2022 | no later than Nov 2022 |
| Application 11/303,992 | Abandoned not computed | not computed |
| US 7,891,154 | Lapsed on the fee record Feb 2019 | Feb 2019 |
8 of 44 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 |
|---|---|---|---|
| Oct 24, 2017 Reel 43929, frame 600 | Chambers, John; Maschwitz, Peter | AGC Flat Glass North America, Inc.; Asahi Glass Co., Ltd.; AGC Glass Europe S.A. | Assignment of Assignor's Interest |
| Oct 24, 2017 reel/frame not recorded | Chambers, John; Maschwitz, Peter | AGC Flat Glass North America, Inc. | Assignment of Assignor's Interest |
| Oct 24, 2017 reel/frame not recorded | Chambers, John; Maschwitz, Peter | Asahi Glass Co., Ltd. | Assignment of Assignor's Interest |
| Oct 24, 2017 reel/frame not recorded | Chambers, John; Maschwitz, Peter | AGC Glass Europe S.A. | 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
Dec 2035
Term ends Dec 18, 2035. Maintenance fees still fall due before then
Citations
24
later US patents cite this one
That is top 10% of utility patents granted in 2019 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.