US2828568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cartridge indicating magazine for automatic pistols and other firearms
Assignee: Individual
•
Filing: 1955-06-17
•
Granted: 1958-04-01
•
Expires: 1975-06-17
Abstract
No abstract record available.
Inventors
- 👤 Edwin G Sakewitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:43
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/61; F41A9/62; F41A9/64; F41A9/65; F41A9/69
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US441673A
Cited
US885868A
Cited
FR463244A
Cited
US1252094A
Cited
US1299303A
Cited
US1350619A
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US2137491A
Cited
US2620582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |