Patent US2918050A successfully refreshed from Google Patents.
US2918050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Repeating cross bow
Assignee: Individual
•
Filing: 1957-08-16
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Granted: 1959-12-22
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Expires: 1977-08-16
Abstract
No abstract record available.
Inventors
- 👤 Francis R Kopman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:14
CPC Classifications
F; F41; F41B; F41B5/00; F41B5/12; F41B5/126
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US577641A
Cited
US1484930A
Cited
US1824503A
Cited
US1985079A
Cited
US2516341A
Cited
GB632298A
Cited
US2815016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |