US3264997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propellant configurations for use in firearms
Assignee: Individual
•
Filing: 1964-07-20
•
Granted: 1966-08-09
•
Expires: 1984-07-20
Abstract
No abstract record available.
Inventors
- 👤 Harold E Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:28
CPC Classifications
F; F42; F42B; F42B5/00; F42B5/02; F42B5/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US660567A
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US660568A
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US716768A
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US1274791A
Cited
US2712283A
Cited
US2529791A
Cited
US2933041A
Cited
US3048112A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |