Collateral for a security interest recorded Jan 20, 2023 (Texas Capital Bank).
Term ends Mar 2, 2027 · Medium confidence
20-year base term ended Sep 30, 2025
Why Medium: A parent in the chain could not be resolved.
Held by Bowtech, LLC
Filed Mar 19, 2008 as application 12/077,372 · Granted May 10, 2011
Base term plus 518 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Sep 30, 2005
Sep 30, 2005
Term ends
Mar 2, 2027
Mar 2, 2027
Granted
May 10, 2011
May 10, 2011
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
518
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.
4
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 518 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Sep 30, 2005, when application 11/241,030, the earliest non-provisional in its chain, was filed (this one was filed Mar 19, 2008); a parent in its chain could not be resolved (the next row) | Sep 30, 2025 | 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 | +518 days, USPTO patent term adjustment record | Mar 2, 2027 | 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 | Mar 2, 2027 | Medium confidence |
This family
| US 7,441,555 | Lapsed on the fee record Oct 2016 | Oct 2016 |
| US 7,938,109 | this patent Mar 2027 | Mar 2027 |
| US 8,281,775 | Term ended Sep 2025 | Sep 2025 |
3 of 4 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 |
|---|---|---|---|
| Mar 19, 2008 Reel 20720, frame 839 | Larson, Marlow W. | Larson Archery Company | Assignment of Assignor's Interest |
| Apr 15, 2015 Reel 35415, frame 956 | Larson Archery Company | Bowtech, Inc. | Assignment of Assignor's Interest |
| Nov 13, 2015 Reel 37029, frame 493 | Bowtech, Inc. | Antares Capital LP, as US Agent | Security Interest |
| Jul 6, 2022 Reel 60413, frame 962 | Antares Capital LP, as US Agent | Bowtech, Inc. | Release of Security Interest |
| Nov 4, 2022 Reel 61882, frame 752 | Bowtech, Inc. | Bowtech, LLC | Entity Conversion |
| Jan 20, 2023 Reel 62439, frame 321 | Bowtech, LLC; Black Gold Archery, LLC; Excalibur Crossbow, LLC | Texas Capital Bank, As Administrative Agent | Patent Security Agreement |
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
Mar 2027
Term ends Mar 2, 2027. No further fees fall due before then
Note
The 518 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
20
later US patents cite this one
That is above the median of utility patents granted in 2011 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.