Patent US6236353B1 successfully refreshed from Google Patents.
US2548622A
Expired / Lapsed
US
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Firing mechanism for submachine guns
Assignee: Individual
•
Filing: 1946-08-14
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Granted: 1951-04-10
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Expires: 1966-08-14
Abstract
No abstract record available.
Inventors
- 👤 Frederick W Sampson
- 👤 George J Hyde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:07
CPC Classifications
F; F41; F41A; F41A11/00; F41A17/00; F41A17/34; F41A17/38; F41A17/56; F41A19/00; F41A19/06; F41A19/25; F41A19/27; F41A19/29; F41A19/30; F41A19/33; F41A3/00; F41A3/64; F41A3/72; F41A3/78; F41A3/82; F41A3/84
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-09 | 1954-10-09 | 1955-04-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-09 | 1958-10-09 | 1959-04-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-09 | 1962-10-09 | 1963-04-10 | $7700.00 | Window Closed / Lapsed |