US3135528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Folding king pin
Assignee: HIGHWAY TRAILER IND Inc
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Filing: 1961-01-05
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Granted: 1964-06-02
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Expires: 1981-01-05
Abstract
No abstract record available.
Inventors
- 👤 John J Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 15:36
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0842; B62D53/085
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
IN TRAILER CONSTRUCTION OF THE CLASS DESCRIBED, IN COMBINATION, A TRAILER BODY, AND FIFTH WHEEL CONNECTING MEANS CARRIED THEREBY, SAID MEANS COMPRISING A KING PIN AND PIVOT AND POSITIVE LOCK INSTRUMENTALITIES THEREFOR, THE BOTTOM OF SAID BODY BEING PROVIDED WITH A FIFTH WHEEL ENGAGING SECTION, THE KING PIN BEING MOUNTED TO PIVOT INTO POSITION TO EXTEND BELOW THE SURFACE OF SAID SECTION, THE LOCK INSTRUMENTALITIES MAINTAIN SAID KING PIN IN SAID POSITION, SAID INSTRUMENTALITIES INCLUDING A LOCK SECTION FORMED ON THE UPPER END OF THE KING PIN AND A PLATE HAVING AN OPENING TO RECEIVE SAID SECTION THEREIN, AND SAID SECTION AND PLATE ARE SEPARABLE TO FACILITATE TRANSVERSE PIVOTAL MOVEMENT OF SAID KING PIN OUT OF SAID POSITION.
Claim 2
Dependent Claim
118 words
IN TRAILER CONSTRUCTION OF THE CLASS DESCRIBED, IN COMBINATION, A TRAILER BODY, AND FIFTH WHEEL CONNECTING MEANS CARRIED THEREBY, SAID MEANS COMPRISING A KING PIN AND PIVOT AND POSITIVE LOCK INSTRUMENTALITIES THEREFOR, THE BOTTOM OF SAID BODY BEING PROVIDED WITH A FIFTH WHEEL ENGAGING SECTION, THE KING PIN BEING MOUNTED TO PIVOT INTO POSITION TO EXTEND BELOW THE SURFACE OF SAID SECTION, THE LOCK INSTRUMENTALITIES MAINTAIN SAID KING PIN IN SAID POSITION, SAID INSTRUMENTALITIES INCLUDING A LOCK SECTION FORMED ON THE UPPER END OF THE KING PIN AND A PLATE HAVING AN OPENING TO RECEIVE SAID SECTION THEREIN, AND SAID SECTION AND PLATE ARE SEPARABLE TO FACILITATE TRANSVERSE PIVOTAL MOVEMENT OF SAID KING PIN OUT OF SAID POSITION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-02 | 1967-12-02 | 1968-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-02 | 1971-12-02 | 1972-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-02 | 1975-12-02 | 1976-06-02 | $7700.00 | Window Closed / Lapsed |