US2987967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Firearm with piston having springpressed inertia valve
Assignee: Olin Corp
•
Filing: 1959-02-27
•
Granted: 1961-06-13
•
Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Rolf H Wild
- 👤 Dmitrieff George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:13
CPC Classifications
F; F41; F41A; F41A5/00; F41A5/18; F41A5/26; F41A5/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1738501A
Cited
US2482880A
Cited
US2783685A
Cited
US2750849A
Cited
US2918847A
Cited
US2814972A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-12 | 1964-12-12 | 1965-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-12 | 1968-12-12 | 1969-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-12 | 1972-12-12 | 1973-06-13 | $7700.00 | Window Closed / Lapsed |