Patent US3529702A successfully refreshed from Google Patents.
US3529702A
Expired / Lapsed
US
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Winch clutch and brake with modulating selector valve
Assignee: CDI SALES CORP A MN CORP
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Filing: 1968-04-29
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Granted: 1970-09-22
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Expires: 1988-04-29
Abstract
No abstract record available.
Inventors
- 👤 Richard W Eckstein Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:19
CPC Classifications
B; B62; B62D; B62D11/00; B62D11/02; B62D11/06; B62D11/08; F; F16; F16D; F16D49/00; F16D49/08; F16D49/12; F16D67/00; F16D67/02; F16D67/04; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/86694; Y10T137/8671; Y10T137/86718; Y10T137/86734
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA663608A
Cited
US3128861A
Cited
US1298956A
Cited
US2506842A
Cited
US2513812A
Cited
US3349879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |