US3518980A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Archer's bow
Assignee: JOSEPH E HAMM
•
Filing: 1968-04-03
•
Granted: 1970-07-07
•
Expires: 1988-04-03
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Hamm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:25
CPC Classifications
F; F42; F42B; F42B6/00; F42B6/02; F42B6/04; F41; F41B; F41B5/00; F41B5/0073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2116650A
Cited
US2307021A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-06 | 1974-01-05 | 1974-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-06 | 1978-01-05 | 1978-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-06 | 1982-01-05 | 1982-07-07 | $7700.00 | Window Closed / Lapsed |