Lapsed Oct 16, 2020 on the fee record · High confidence
20-year base term ends Sep 17, 2027
Second maintenance fee unpaid; grace period ended.
Held by Ahf, LLC D/B/A Ahf Products
Filed Sep 17, 2007 as application 11/901,361 · Granted Oct 16, 2012
Base term, 20 years from filing, plus 811 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 16, 2020
2007
2029
Clock starts
Sep 17, 2007
Sep 17, 2007
No longer in force
Oct 16, 2020
Oct 16, 2020
Granted
Oct 16, 2012
Oct 16, 2012
Term would have run to
Dec 6, 2029
Dec 6, 2029
base term
patent term adjustment
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
811
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
42
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Dec 6, 2029: its 20-year base term plus 811 days of term adjustment for prosecution delay. 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 Sep 17, 2007, when this application, 11/901,361, was filed | Sep 17, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +811 days, USPTO patent term adjustment record | Dec 6, 2029 | 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 | 1 of 3 maintenance fees paid | lapsed Oct 16, 2020 | High confidence |
| Computed term end | The steps above, in order | Oct 16, 2020 | High confidence |
This family
| US 7,381,474 | Term ended Feb 2024 | Feb 2024 |
| US 7,261,947 | Term ended Jan 2024 | Jan 2024 |
| Application PCT/US2004/039351 | PCT application no patent term | no patent term |
| US 7,858,170 | In force Feb 2029 | Feb 2029 |
| Application 11/729,518 | Abandoned not computed | not computed |
| US 8,287,971 | this patent Oct 2020 | Oct 2020 |
| US 8,496,779 | Lapsed on the fee record Jul 2021 | Jul 2021 |
| US 8,460,757 | Lapsed on the fee record Jun 2021 | Jun 2021 |
8 of 42 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 15, 2007 Reel 20129, frame 31 | Beakler, Brian W. | Armstrong World Industries, Inc. | Assignment of Assignor's Interest |
| Jan 7, 2013 Reel 29574, frame 276 | Armstrong World Industries, Inc. | Awi Licensing Company | Assignment of Assignor's Interest |
| May 6, 2016 Reel 38629, frame 767 | Awi Licensing Company | Afi Licensing LLC | Assignment of Assignor's Interest |
| Oct 17, 2016 Reel 40381, frame 180 | Afi Licensing LLC | Bank of America, N.A., as Collateral Agent | Security Interest |
| Dec 31, 2018 Reel 47996, frame 459 | Bank of America, N.A., as Collateral Agent | Afi Licensing LLC | Release of Security Interest |
| Jan 29, 2019 Reel 48171, frame 134 | Armstrong Flooring, Inc. | Armstrong Hardwood Flooring Company | Assignment of Assignor's Interest |
| Mar 8, 2019 Reel 48544, frame 630 | Homerwood Hardwood Flooring Company, LLC; Ahf, LLC | Ally Bank, As Collateral Agent | Security Agreement |
| Feb 26, 2021 Reel 55421, frame 470 | Afi Licensing LLC | Armstrong Hardwood Flooring Company | Assignment of Assignor's Interest |
| Mar 19, 2021 Reel 55663, frame 550 | Armstrong Hardwood Flooring Company | Ahf, LLC D/B/A Ahf Products | Change of Name |
| Feb 1, 2022 Reel 58850, frame 408 | Ally Bank, As Collateral Agent | Homerwood Hardwood Flooring Company, LLC; Ahf, LLC (F/K/A Armstrong Hardwood Flooring Company) | Release of Security Interest |
| Feb 1, 2022 reel/frame not recorded | Ally Bank, As Collateral Agent | Homerwood Hardwood Flooring Company, LLC | Release of Security Interest |
| Feb 1, 2022 reel/frame not recorded | Ally Bank, As Collateral Agent | Ahf, LLC (F/K/A Armstrong Hardwood Flooring Company) | Release of Security Interest |
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
Note
The 811 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2012 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.