Patent US2998780A successfully refreshed from Google Patents.
US2998780A
Expired / Lapsed
US
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High velocity, fin stabilized projectile, rifled barrel gun system
Assignee: Individual
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Filing: 1956-05-28
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Granted: 1961-09-05
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 William B Anspacher
- 👤 Ellis H Scott
- 👤 Gilbert C Bowen
- 👤 Joseph J Redmond
- 👤 Robert L Detwiler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:59
CPC Classifications
F; F42; F42B; F42B14/00; F42B14/06; F42B14/064
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) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |