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US3223435A Expired / Lapsed US ⏱️ 0.0 years remaining

Shock absorber trailer hitch

Assignee: Individual
•
Filing: 1963-04-05
•
Granted: 1965-12-14
•
Expires: 1983-04-05
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Abstract

No abstract record available.

Inventors

  • 👤 Yarbrough Glen

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-05 10:23
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/48; B60D1/50

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 194 words
A SHOCK ABSORBER TRAILER HITCH INCLUDING A BALL AND SOCKET CONNECTOR JOINT FOR OPERATIVELY JOINING A TRAILER AND A TOW VEHICLE WHICH INCLUDES A PAIR OF JUXTAPOSED VERTICALLY ARRANGED COMPRESSION COIL SPRINGS EACH ENCLOSED IN A PROTECTIVE CYLINDRICAL HOUSING WHICH CONPLETELY SURROUNDS AND ENCLOSES THE COIL SPRING A PAIR OF VERTICAL DIAMETRICALLY DISPOSED SLOTS EXTENDING THROUGH THE CYLINDRICAL WALL OF SAID HOUSING, A RADIALLY INWARDLY PROJECTING LOWER FIXED SEAT LOCATED WITHIN EACH HOUSING AND ARRANGED TO SUPPORT THE LOWER END OF THE COIL SPRING AND TO LIMIT THE EXTENT OF ITS DOWNWARD MOVEMENT WITHIN THE HOUSING, ANOTHER RADIALLY INWARDLY PROJECTING UPPER ADJUSTABLE SEAT LOCATED WITHIN EACH HOUSING AND ARRANGED TO SUPPORT THE UPPER END OF THE COIL SPRING AND TO LIMIT THE EXTENT OF ITS UPWARD MOVEMENT WITHIN THE HOUSING, AND A PAIR OF HORIZONTALLY DISPOSED ELONGATED ARMS PIVOTALLY CONECTED TO THE TOW VEHICLE AND EXTENDING THROUGH THE VERTICAL SLOTS IN THE HOUSING AND ADAPTED TO ENGAGE AND TO COMPRESS SAID COIL SPRING TO ABSORB SHOCK BOTH UPON THE UPWARD AND DOWNWARD MOVEMENT OF THE BALL AND SOCKET CONNECTOR JOINT WHICH MAY OCCUR AS THE TRAILER AND TOW VEHICLE ARE MOVING OVER ROUGH TERRAIN.
Claim 2
Dependent Claim 194 words
A SHOCK ABSORBER TRAILER HITCH INCLUDING A BALL AND SOCKET CONNECTOR JOINT FOR OPERATIVELY JOINING A TRAILER AND A TOW VEHICLE WHICH INCLUDES A PAIR OF JUXTAPOSED VERTICALLY ARRANGED COMPRESSION COIL SPRINGS EACH ENCLOSED IN A PROTECTIVE CYLINDRICAL HOUSING WHICH CONPLETELY SURROUNDS AND ENCLOSES THE COIL SPRING A PAIR OF VERTICAL DIAMETRICALLY DISPOSED SLOTS EXTENDING THROUGH THE CYLINDRICAL WALL OF SAID HOUSING, A RADIALLY INWARDLY PROJECTING LOWER FIXED SEAT LOCATED WITHIN EACH HOUSING AND ARRANGED TO SUPPORT THE LOWER END OF THE COIL SPRING AND TO LIMIT THE EXTENT OF ITS DOWNWARD MOVEMENT WITHIN THE HOUSING, ANOTHER RADIALLY INWARDLY PROJECTING UPPER ADJUSTABLE SEAT LOCATED WITHIN EACH HOUSING AND ARRANGED TO SUPPORT THE UPPER END OF THE COIL SPRING AND TO LIMIT THE EXTENT OF ITS UPWARD MOVEMENT WITHIN THE HOUSING, AND A PAIR OF HORIZONTALLY DISPOSED ELONGATED ARMS PIVOTALLY CONECTED TO THE TOW VEHICLE AND EXTENDING THROUGH THE VERTICAL SLOTS IN THE HOUSING AND ADAPTED TO ENGAGE AND TO COMPRESS SAID COIL SPRING TO ABSORB SHOCK BOTH UPON THE UPWARD AND DOWNWARD MOVEMENT OF THE BALL AND SOCKET CONNECTOR JOINT WHICH MAY OCCUR AS THE TRAILER AND TOW VEHICLE ARE MOVING OVER ROUGH TERRAIN.

References Cited (Backward Citations)

US1908711A Cited
US1991684A Cited
US2463140A Cited
US2698667A Cited
US2660444A Cited
US2852274A Cited
US3021154A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-12-13 1969-06-14 1969-12-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-12-13 1973-06-14 1973-12-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-12-13 1977-06-14 1977-12-14 $7700.00 Window Closed / Lapsed

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