Patent JPS6136176A successfully refreshed from Google Patents.
US3138271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Boat trailers
Assignee: Individual
•
Filing: 1961-07-28
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Granted: 1964-06-23
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Expires: 1981-07-28
Abstract
No abstract record available.
Inventors
- 👤 Lay Manford S De
- 👤 Sr Allen C Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 08:49
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; B60P3/1033; B60P3/1058
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
94 words
A BOAT TRAILER COMPRISING A FRAME, A BOAT-SUPPORTING CRADLE NORMALLY NESTED IN SAID FRAME, FIRST ROLLER MEANS MOUNTED IN SAID FRAME FOR SLIDABLY SUPPORTING SAID CRADLE SO THAT SAID CRADLE CAN BE SHIFTED FROM A POSITION WHERE IT IS NESTED WITHIN THE FRAME TO A POSITION WHERE IT IS REARWARDLY EXTENDED WITH RESPECT TO THE FRAME, SECOND ROLLER MEANS MOUNTED WITHIN THE END OF SAID FRAME FOR PERMITTING SAID CRADLE TO BE PIVOTED DOWNWARDLY ABOUT SAID SECOND ROLLER MEANS, A LOCKING ELEMENT ROCKABLY MOUNTED ON SAID CRADLE AND HAVING A PAIR OF EXTENDED CATCH-FORM-
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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) | 1967-06-23 | 1967-12-23 | 1968-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-23 | 1971-12-23 | 1972-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-23 | 1975-12-23 | 1976-06-23 | $7700.00 | Window Closed / Lapsed |