US2641937A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable torsion shaft in flying shears
Assignee: Crown Cork and Seal Co Inc
•
Filing: 1949-07-15
•
Granted: 1953-06-16
•
Expires: 1969-07-15
Abstract
No abstract record available.
Inventors
- 👤 Jr John Edward Erhardt
- 👤 Duffy Joseph Silbey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:17
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/0018; F16H57/0025; B; B23; B23D; B23D25/00; B23D25/12; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19623
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1318892A
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US1945325A
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US1988215A
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US2217560A
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US2242363A
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US2374344A
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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) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |