Term ends Jan 7, 2029 · Medium confidence
20-year base term ends Jan 7, 2029
Why Medium: A parent in the chain could not be resolved.
Held by CertainTeed LLC
Filed May 17, 2021 as application 17/322,592 · Granted Feb 22, 2022
Base term, 20 years from filing
Today
2009
2029
Clock starts
Jan 7, 2009
Jan 7, 2009
Term ends
Jan 7, 2029
Jan 7, 2029
Granted
Feb 22, 2022
Feb 22, 2022
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.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 11,012,026, to Jan 7, 2029. The term already ends on or before that date, so the cap shortened nothing.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
12
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 is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 1 of 1 maintenance fees is paid so far. Confidence: Medium. 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 Jan 7, 2009, when application PCT/US2009/030253, the earliest non-provisional in its chain, was filed (this one was filed May 17, 2021); a parent in its chain could not be resolved (the next row) | Jan 7, 2029 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 11,012,026) | resolves to Jan 7, 2029, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 1 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 7, 2029 | Medium confidence |
This family
| US 8,319,093 | In force Jan 2028 | Jan 2028 |
| US 8,404,967 | In force Jan 2028 | Jan 2028 |
| US 8,835,751 | In force Jan 2029 | Jan 2029 |
| US 9,276,141 | In force Jan 2029 | Jan 2029 |
| US 9,998,067 | In force Jan 2028 | Jan 2028 |
| US 10,784,813 | In force Jan 2029 | Jan 2029 |
| US 11,012,026 | In force Jan 2029 | Jan 2029 |
| US 11,258,399 | this patent Jan 2029 | Jan 2029 |
8 of 12 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 |
|---|---|---|---|
| May 18, 2021 Reel 56273, frame 773 | Kalkanoglu, Husnu M.; Jacobs, Gregory F.; Shiao, Ming Liang | CertainTeed Corporation | Assignment of Assignor's Interest |
| May 18, 2021 Reel 56357, frame 506 | CertainTeed Corporation | CertainTeed LLC | Conversion |
| May 18, 2021 Reel 56274, frame 337 | CertainTeed LLC | CertainTeed LLC | Conversion, Reverse Merger, Conversion |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Jan 2029
Term ends Jan 7, 2029. No further fees fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 11,012,026, ends no earlier than this term, so it caps nothing.
Citations
74
later US patents cite this one
That is top 1% of utility patents granted in 2022 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.