Patent US2642970A successfully refreshed from Google Patents.
US2642970A
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US
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Latch released positive clutch
Assignee: O E Szekely & Associates Inc
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Filing: 1950-02-23
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Granted: 1953-06-23
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Expires: 1970-02-23
Abstract
No abstract record available.
Inventors
- 👤 Otto E Szekely
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:46
CPC Classifications
F; F16; F16D; F16D11/00; F16D11/02; F16D11/04; Y; Y10; Y10S; Y10S411/00; Y10S411/918; Y10T; Y10T403/00; Y10T403/59; Y10T403/597; Y10T403/60; Y10T403/602; Y10T403/604
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1193008A
Cited
US1314260A
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US845113A
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US876053A
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US1188790A
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US1511651A
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US1974581A
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US2379775A
Cited
US2509813A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |