US2438175A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Axially engaging positive clutch
Assignee: United Shoe Machinery Corp
•
Filing: 1945-10-10
•
Granted: 1948-03-23
•
Expires: 1965-10-10
Abstract
No abstract record available.
Inventors
- 👤 John T Lancaster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:04
CPC Classifications
F; F16; F16D; F16D15/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US392610A
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US499226A
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US1686989A
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US900578A
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US1006551A
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US1331891A
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US1646646A
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US1987682A
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US2050910A
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US2390792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-03-23 | 1951-09-22 | 1952-03-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-03-23 | 1955-09-22 | 1956-03-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-03-23 | 1959-09-22 | 1960-03-23 | $7700.00 | Window Closed / Lapsed |