Patent US2972948A successfully refreshed from Google Patents.
US2972948A
Expired / Lapsed
US
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Shaped charge projectile
Assignee: Individual
•
Filing: 1952-09-16
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Granted: 1961-02-28
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Expires: 1972-09-16
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Kray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:35
CPC Classifications
F; F42; F42B; F42B1/00; F42B1/02; F42B1/032; F42B12/00; F42B12/02; F42B12/36; F42B12/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-28 | 1964-08-29 | 1965-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-28 | 1968-08-29 | 1969-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-28 | 1972-08-29 | 1973-02-28 | $7700.00 | Window Closed / Lapsed |