Patent US2762477A successfully refreshed from Google Patents.
US2762477A
Expired / Lapsed
US
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Positive engaging clutch
Assignee: AT&T Teletype Corp
•
Filing: 1951-10-02
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Granted: 1956-09-11
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Expires: 1971-10-02
Abstract
No abstract record available.
Inventors
- 👤 Walter J Zenner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:51
CPC Classifications
F; F16; F16D; F16D11/00; F16D11/02; F16D11/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US521257A
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US1737907A
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US2061684A
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US1883966A
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GB418328A
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US2202402A
Cited
US2399098A
Cited
US2407558A
Cited
US2519848A
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US2577199A
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US2667252A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-11 | 1960-03-12 | 1960-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-11 | 1964-03-12 | 1964-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-11 | 1968-03-12 | 1968-09-11 | $7700.00 | Window Closed / Lapsed |