Patent US1639698A successfully refreshed from Google Patents.
Patent US2489428A successfully refreshed from Google Patents.
US2489428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magazine for machine guns
Assignee: United Shoe Machinery Corp
•
Filing: 1944-02-21
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Granted: 1949-11-29
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Expires: 1964-02-21
Abstract
No abstract record available.
Inventors
- 👤 Norman E Mariner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:58
CPC Classifications
F; F41; F41A; F41A9/00; F41A9/61; F41A9/64; F41A9/76; F41A9/38; F41A9/39; F41A9/40
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) | 1952-11-28 | 1953-05-30 | 1953-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-28 | 1957-05-30 | 1957-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-28 | 1961-05-30 | 1961-11-29 | $7700.00 | Window Closed / Lapsed |