Patent US3171673A successfully refreshed from Google Patents.
US3171673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable level hitch device
Assignee: Individual
•
Filing: 1962-05-14
•
Granted: 1965-03-02
•
Expires: 1982-05-14
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Webber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:52
CPC Classifications
B; B65; B65G; B65G69/00; B65G69/003; B60; B60D; B60D1/00; B60D1/24; B60D1/36; B60D1/42; B60D1/46; B60D1/465
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
IN A VARIABLE LEVEL HITCH DEVICE THE COMBINATION OF: FIRST AND SECOND VEHICLES; FIRST AND SECOND HITCH STRUCTURES ON SAID FIRST AND SECOND VEHICLES, RESPECTIVELY; A BAR ON ONE OF SAID STRUCTURES; AN INCLINED RAMP ON THE OTHER OF SAID STRUCTURES; AND MEANS PERMITTING VERTICAL MOVEMENT OF THE OTHER OF SAID HITCH STRUCTURES IN RESPONSE TO THE ENGAGEMENT OF SAID BAR WITH SAID RAMP; SAID BAR ELONGATED LATERALLY OF ITS RESPECTIVE VEHICLE; OPPOSITE END PORTIONS OF SAID BAR EXTENDING UPWARDLY; FLANGES ON SAID END PORTIONS; A HOLLOW CYLINDRICAL MEMBER IN WHICH SAID FLANGES ARE DISPOSED; AND SPRINGS SURROUNDING EACH OF SAID END PORTIONS AND ENGAGING OPPOSITE SIDES OF SAID FLANGE
Claim 2
Dependent Claim
110 words
IN A VARIABLE LEVEL HITCH DEVICE THE COMBINATION OF: FIRST AND SECOND VEHICLES; FIRST AND SECOND HITCH STRUCTURES ON SAID FIRST AND SECOND VEHICLES, RESPECTIVELY; A BAR ON ONE OF SAID STRUCTURES; AN INCLINED RAMP ON THE OTHER OF SAID STRUCTURES; AND MEANS PERMITTING VERTICAL MOVEMENT OF THE OTHER OF SAID HITCH STRUCTURES IN RESPONSE TO THE ENGAGEMENT OF SAID BAR WITH SAID RAMP; SAID BAR ELONGATED LATERALLY OF ITS RESPECTIVE VEHICLE; OPPOSITE END PORTIONS OF SAID BAR EXTENDING UPWARDLY; FLANGES ON SAID END PORTIONS; A HOLLOW CYLINDRICAL MEMBER IN WHICH SAID FLANGES ARE DISPOSED; AND SPRINGS SURROUNDING EACH OF SAID END PORTIONS AND ENGAGING OPPOSITE SIDES OF SAID FLANGE
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) | 1968-03-01 | 1968-08-31 | 1969-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-01 | 1972-08-31 | 1973-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-01 | 1976-08-31 | 1977-03-02 | $7700.00 | Window Closed / Lapsed |