US2638341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed attachment for alligator shears
Assignee: Individual
•
Filing: 1951-02-02
•
Granted: 1953-05-12
•
Expires: 1971-02-02
Abstract
No abstract record available.
Inventors
- 👤 Silver Barney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:42
CPC Classifications
B; B21; B21D; B21D43/00; B21D43/28; B21D43/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US524501A
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US1702185A
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US916562A
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US995465A
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US1637658A
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DE496822C
Cited
US1764831A
Cited
US1689110A
Cited
US1798316A
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US2275064A
Cited
US2365288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-11 | 1956-11-10 | 1957-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-11 | 1960-11-10 | 1961-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-11 | 1964-11-10 | 1965-05-12 | $7700.00 | Window Closed / Lapsed |