Patent US2037376A successfully refreshed from Google Patents.
US3239240A
Expired / Lapsed
US
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Fifth wheel coupling device
Assignee: Individual
•
Filing: 1964-06-15
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Granted: 1966-03-08
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Expires: 1984-06-15
Abstract
No abstract record available.
Inventors
- 👤 Lawrence R Palmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:48
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A COUPLING OF THE FIFTH TYPE FOR ATTACHMENT OF THE KING PIN OF A TRAILER TO A DRAFT VEHICLE, THE COMBINATION OF A MAIN FRAME HAVING A RIGID STATIONARY COUPLING ATTACHED THERETO PROVIDED WITH A SEGMENTAL KING PIN RECEIVING PORTION, A PAIR OF MOVABLE JAWS EACH HAVING KING PIN RECEIVING SEGMENTS COMPLEMENTARY TO THE SEGMENT OF THE STATIONARY JAW, LEVERS PIVOTALLY MOUNTED ON SAID MAIN FRAME FOR EACH OF THE MOVING JAWS HAVING A CONNECTION THEREWITH, SPRING MEANS NORMALLY URGING SAID MOVABLE JAWS TO A CLOSING POSITION, AND OPERATING MEANS INCLUDING A FRAME SLIDABLY MOUNTED ON THE MAIN FRAME HAVING MEANS TO ENABLE THE MOVEMENT OF SAID LEVERS FOR OPENING SAID MOVABLE JAWS.
Claim 2
Dependent Claim
114 words
IN A COUPLING OF THE FIFTH TYPE FOR ATTACHMENT OF THE KING PIN OF A TRAILER TO A DRAFT VEHICLE, THE COMBINATION OF A MAIN FRAME HAVING A RIGID STATIONARY COUPLING ATTACHED THERETO PROVIDED WITH A SEGMENTAL KING PIN RECEIVING PORTION, A PAIR OF MOVABLE JAWS EACH HAVING KING PIN RECEIVING SEGMENTS COMPLEMENTARY TO THE SEGMENT OF THE STATIONARY JAW, LEVERS PIVOTALLY MOUNTED ON SAID MAIN FRAME FOR EACH OF THE MOVING JAWS HAVING A CONNECTION THEREWITH, SPRING MEANS NORMALLY URGING SAID MOVABLE JAWS TO A CLOSING POSITION, AND OPERATING MEANS INCLUDING A FRAME SLIDABLY MOUNTED ON THE MAIN FRAME HAVING MEANS TO ENABLE THE MOVEMENT OF SAID LEVERS FOR OPENING SAID MOVABLE JAWS.
References Cited (Backward Citations)
US2102821A
Cited
US2783899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |