Lapsed Oct 28, 2016 on the fee record · High confidence
20-year base term ended Sep 30, 2025
Second maintenance fee unpaid; grace period ended.
Held by Bowtech, Inc.
Filed Sep 30, 2005 as application 11/241,030 · Granted Oct 28, 2008
Base term, 20 years from filing, plus 242 days of patent term adjustment (USPTO delay)
Today
Lapsed Oct 28, 2016
2005
2026
Clock starts
Sep 30, 2005
Sep 30, 2005
No longer in force
Oct 28, 2016
Oct 28, 2016
Granted
Oct 28, 2008
Oct 28, 2008
Term would have run to
May 30, 2026
May 30, 2026
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
242
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.
4
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 May 30, 2026: its 20-year base term plus 242 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 30, 2005, when this application, 11/241,030, was filed | Sep 30, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +242 days, USPTO patent term adjustment record | May 30, 2026 | 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 28, 2016 | High confidence |
| Computed term end | The steps above, in order | Oct 28, 2016 | High confidence |
This family
| US 7,441,555 | this patent Oct 2016 | Oct 2016 |
| US 7,938,109 | In force 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 |
|---|---|---|---|
| Sep 30, 2005 Reel 17069, frame 444 | 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 |
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
Note
The 242 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
79
later US patents cite this one
That is top 10% of utility patents granted in 2008 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.