Patent US2137680A successfully refreshed from Google Patents.
US2137680A
Expired / Lapsed
US
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Cartridge holder
Assignee: Individual
•
Filing: 1937-01-23
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Granted: 1938-11-22
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Expires: 1957-01-23
Abstract
No abstract record available.
Inventors
- 👤 William W Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:16
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/82; F41A9/83; F41A9/84; F42; F42B; F42B39/00; F42B39/002; F42B39/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1941-11-21 | 1942-05-23 | 1942-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-11-21 | 1946-05-23 | 1946-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-11-21 | 1950-05-23 | 1950-11-22 | $7700.00 | Window Closed / Lapsed |