Patent US3120375A successfully refreshed from Google Patents.
US3120375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auto hold-down winch and track assembly
Assignee: Darby Corp
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Filing: 1961-04-18
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Granted: 1964-02-04
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Expires: 1981-04-18
Abstract
No abstract record available.
Inventors
- 👤 James D Haynes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:45
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/07; B60P3/073; B61; B61D; B61D45/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN COMBINATION WITH AN ELONGATED TRACK HAVING A PAIR OF SPACED RAILS, A MOORING UNIT INCLUDING AN ELONGATED SUPPORT CARRIED BY THE TRACK BETWEEN THE RAILS, SAID UNIT AND SAID RAILS BEING PROVIDED WITH HOLDING MEANS THEREON NORMALLY OUT OF INTERENGAGEMENT WHEN THE UNIT IS IN ONE POSITION WITH SAID SUPPORT ANGULARLY DISPOSED WITH RESPECT TO THE RAILS TO PERMIT THE UNIT TO BE SHIFTED
Claim 2
Dependent Claim
65 words
IN COMBINATION WITH AN ELONGATED TRACK HAVING A PAIR OF SPACED RAILS, A MOORING UNIT INCLUDING AN ELONGATED SUPPORT CARRIED BY THE TRACK BETWEEN THE RAILS, SAID UNIT AND SAID RAILS BEING PROVIDED WITH HOLDING MEANS THEREON NORMALLY OUT OF INTERENGAGEMENT WHEN THE UNIT IS IN ONE POSITION WITH SAID SUPPORT ANGULARLY DISPOSED WITH RESPECT TO THE RAILS TO PERMIT THE UNIT TO BE SHIFTED
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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) | 1967-02-03 | 1967-08-05 | 1968-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-03 | 1971-08-05 | 1972-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-03 | 1975-08-05 | 1976-02-04 | $7700.00 | Window Closed / Lapsed |