US3347562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trailer hitch
Assignee: BOLYARD DISTRIBUTING Co
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Filing: 1965-10-22
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Granted: 1967-10-17
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Expires: 1985-10-22
Abstract
No abstract record available.
Inventors
- 👤 Joseph E Bolyard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:37
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/30; B60D1/34; B60D1/345
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A HITCH FOR CONNECTING A TRAILER HAVING A FORWARDLY CONVERGING FRAME AND A HITCH SOCKET AT THE APEX THEREOF, TO A TOWING VEHICLE, SAID HITCH COMPRISING: (A) A MOUNTING STRUCTURE INCLUDING UPPER AND LOWER PLATE MEMBERS, A CYLINDRICAL JOURNAL DISPOSED BETWEEN AND JOINING SAID PLATE MEMBERS, A WEB AT ONE SIDE OF SAID JOURNAL AND ALSO JOINING SAID PLATE MEMBERS; (B) MEANS FOR SECURING SAID WEB TO SAID TOWING VEHICLE; (C) A BALL MEMBER SECURED TO SAID UPPER PLATE MEMBER IN COAXIAL RELATION TO SAID JOURNAL AND ADAPTED TO RECEIVE SAID HITCH SOCKET; (D) A SLEEVE RECEIVED ON SAID JOURNAL FOR ROTATION ABOUT AN ESSENTIALLY VERTICAL AXIS PASSING THROUGH THE CENTER OF SAID BALL MEMBER; (E) A PAIR OF DIVERGING SPRING ARMS SECURED TO SAID SLEEVE; (F) AND MEANS FOR APPLYING AN UPWARD BIAS TO SAID SPRING ARMS AND SECURING SAID SPRING ARMS TO SAID CONVERGING FRAME.
Claim 2
Dependent Claim
147 words
A HITCH FOR CONNECTING A TRAILER HAVING A FORWARDLY CONVERGING FRAME AND A HITCH SOCKET AT THE APEX THEREOF, TO A TOWING VEHICLE, SAID HITCH COMPRISING: (A) A MOUNTING STRUCTURE INCLUDING UPPER AND LOWER PLATE MEMBERS, A CYLINDRICAL JOURNAL DISPOSED BETWEEN AND JOINING SAID PLATE MEMBERS, A WEB AT ONE SIDE OF SAID JOURNAL AND ALSO JOINING SAID PLATE MEMBERS; (B) MEANS FOR SECURING SAID WEB TO SAID TOWING VEHICLE; (C) A BALL MEMBER SECURED TO SAID UPPER PLATE MEMBER IN COAXIAL RELATION TO SAID JOURNAL AND ADAPTED TO RECEIVE SAID HITCH SOCKET; (D) A SLEEVE RECEIVED ON SAID JOURNAL FOR ROTATION ABOUT AN ESSENTIALLY VERTICAL AXIS PASSING THROUGH THE CENTER OF SAID BALL MEMBER; (E) A PAIR OF DIVERGING SPRING ARMS SECURED TO SAID SLEEVE; (F) AND MEANS FOR APPLYING AN UPWARD BIAS TO SAID SPRING ARMS AND SECURING SAID SPRING ARMS TO SAID CONVERGING FRAME.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |