Term ends Nov 9, 2031 · High confidence
20-year base term ends Aug 4, 2029
Held by AGC Inc.
Filed Aug 4, 2009 as application 12/535,447 · Granted Feb 18, 2014
Base term plus 827 days of patent term adjustment (USPTO delay)
Today
2009
2031
Clock starts
Aug 4, 2009
Aug 4, 2009
Term ends
Nov 9, 2031
Nov 9, 2031
Granted
Feb 18, 2014
Feb 18, 2014
base term
patent term adjustment
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
827
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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 runs 827 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Aug 4, 2009, when this application, 12/535,447, was filed | Aug 4, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +827 days, USPTO patent term adjustment record | Nov 9, 2031 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 9, 2031 | 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 |
|---|---|---|---|
| Aug 5, 2009 Reel 23054, frame 711 | Maschwitz, Peter | AGC Flat Glass North America, Inc. | Assignment of Assignor's Interest |
| Feb 1, 2011 Reel 25768, frame 435 | Maschwitz, Peter | AGC Flat Glass North America, Inc.; Asahi Glass Co., Ltd.; AGC Glass Europe | Assignment of Assignor's Interest |
| Feb 1, 2011 reel/frame not recorded | Maschwitz, Peter | AGC Flat Glass North America, Inc. | Assignment of Assignor's Interest |
| Feb 1, 2011 reel/frame not recorded | Maschwitz, Peter | Asahi Glass Co., Ltd. | Assignment of Assignor's Interest |
| Feb 1, 2011 reel/frame not recorded | Maschwitz, Peter | AGC Glass Europe | 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
Nov 2031
Term ends Nov 9, 2031. No further fees fall due before then
Note
The 827 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
110
later US patents cite this one
That is top 5% of utility patents granted in 2014 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.