US2947221A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compression ignition gun
Assignee: Olin Corp
•
Filing: 1956-12-10
•
Granted: 1960-08-02
•
Expires: 1976-12-10
Abstract
No abstract record available.
Inventors
- 👤 Donald N Griffin
- 👤 John W Orr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:30
CPC Classifications
F; F41; F41A; F41A1/00; F41A1/04; Y; Y10; Y10S; Y10S102/00; Y10S102/702
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1174840A
Cited
US1291674A
Cited
US1383111A
Cited
US1343456A
Cited
US1596057A
Cited
US2129875A
Cited
US2574147A
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 |