Patent US2947254A successfully refreshed from Google Patents.
US2947254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closing plug for semi-fixed ammunition
Assignee: Individual
•
Filing: 1955-05-19
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Granted: 1960-08-02
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Expires: 1975-05-19
Abstract
No abstract record available.
Inventors
- 👤 Alexander C H Weiss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:25
CPC Classifications
F; F42; F42B; F42B7/00; F42B7/02; F42B7/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE213242C
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AT15481B
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GB582350A
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US2452821A
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US2420614A
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US2628560A
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FR943799A
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US2559275A
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US2682687A
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FR1051698A
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FR1094753A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |