Patent US3206224A successfully refreshed from Google Patents.
US3206224A
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Trailer hitch
Assignee: Elkhart Welding & Boiler Works Inc
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Filing: 1963-10-28
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Granted: 1965-09-14
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Expires: 1983-10-28
Abstract
No abstract record available.
Inventors
- 👤 Gerald L Bock
- 👤 Weber Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:24
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/30; B60D1/34; B60D1/345
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
155 words
IN A LOAD EQUALIZING AND STABILIZING HITCH FOR CONNECTING A TRAILER TO A TOWING VEHICLE, HAVING A BRACKET, MEANS FOR ATTACHING SAID BRACKET TO THE TOWING VEHICLE, A SPRING BAR ASSEMBLY ON EACH SIDE OF SAID BRACKET INCLUDING A BAR, AND MEANS ON ONE END OF SAID BAR FOR PIVOTALLY AT TACHING SAID BAR TO SAID BRACKET ON A VERTICAL AXIS: A MEMBER ADJACENT THE OTHER END OF EACH OF SAID BARS ADAPTED TO BE CONNECTED TO THE TRAILER AND TO EXTEND RIGIDLY DOWNWARDLY, A MEMBER ATTACHED TO SAID BAR NEAR THE END THEREOF OPPOSITE SAID PIVOT MEANS, A TRACK MEANS ON ONE OF SAID MEMBERS POSITIONED SUBSTANTIALLY PARALLEL WITH THE BAR, AND A ROLLER-LIKE MEANS ATTACHED TO THE OTHER OF SAID MEMBERS FOR ENGAGING SAID TRACK, SAID TRACK HAVING A CURVATURE SUCH THAT WHEN SAID ROLLER MEANS IS IN THE CENTER THEREOF, SAID BAR IS AT ITS LOWEST POSITION RELATIVE TO THE TRAILER FRAME.
References Cited (Backward Citations)
US2345270A
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US2597657A
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US2898124A
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US2986389A
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US2952475A
Cited
US3151879A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-13 | 1969-03-15 | 1969-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-13 | 1973-03-15 | 1973-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-13 | 1977-03-15 | 1977-09-14 | $7700.00 | Window Closed / Lapsed |