US3000309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fragmentation projectile
Assignee: Individual
•
Filing: 1943-01-30
•
Granted: 1961-09-19
•
Expires: 1963-01-30
Abstract
No abstract record available.
Inventors
- 👤 Zapf Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 15:56
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/20; F42B12/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US34798A
Cited
US47651A
Cited
US726901A
Cited
US1015944A
Cited
GB133076A
Cited
FR847066A
Cited
USRE23211E
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-18 | 1965-03-20 | 1965-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-18 | 1969-03-20 | 1969-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-18 | 1973-03-20 | 1973-09-19 | $7700.00 | Window Closed / Lapsed |