Patent US2989744A successfully refreshed from Google Patents.
US3215077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge case head structure
Assignee: Olin Corp
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Filing: 1964-03-09
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Granted: 1965-11-02
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Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Alfred A Mayer
- 👤 Charles E Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:47
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/26; F42B5/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
AN AMMUNITION CARTRIDGE CASE INCLUDING A TUBULAR SIDEWALL AND INTEGRAL BASE FORMED OF A RESINOUS PLASTIC MATERIAL, A PRIMER OPENING IN SAID BASE, A CIRCULAR GROOVE IN SAID BASE CONCENTRIC WITH SAID PRIMER OPENING, A STEM OF SAID RESINOUS MATERIAL SURROUNDING SAID PRIMER OPENING, SAID STEM HAVING AN OVERALL HEIGHT EXTENDING ABOVE A PRIMER POSITIONED IN SAID OPENING AND HAVING A LIP PROJECTING INWARDLY TOWARD SAID PRIMER IN PERIPHERAL GAS SEALING CONTACT THEREWITH.
Claim 2
Dependent Claim
73 words
AN AMMUNITION CARTRIDGE CASE INCLUDING A TUBULAR SIDEWALL AND INTEGRAL BASE FORMED OF A RESINOUS PLASTIC MATERIAL, A PRIMER OPENING IN SAID BASE, A CIRCULAR GROOVE IN SAID BASE CONCENTRIC WITH SAID PRIMER OPENING, A STEM OF SAID RESINOUS MATERIAL SURROUNDING SAID PRIMER OPENING, SAID STEM HAVING AN OVERALL HEIGHT EXTENDING ABOVE A PRIMER POSITIONED IN SAID OPENING AND HAVING A LIP PROJECTING INWARDLY TOWARD SAID PRIMER IN PERIPHERAL GAS SEALING CONTACT THEREWITH.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |