Patent US4533239A successfully refreshed from Google Patents.
Patent US3269751A successfully refreshed from Google Patents.
US3269751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable hitch
Assignee: WHATTOFF MOTOR CO
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Filing: 1964-02-11
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Granted: 1966-08-30
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Expires: 1984-02-11
Abstract
No abstract record available.
Inventors
- 👤 Vernard J Whattoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:41
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/24; B60D1/42; B60D1/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
215 words
A HITCH FOR EFFECTING A CONNECTION BETWEEN A TRAILER AND A TRUCK HAVING A PAIR OF LONGITUDINAL FRAME MEMBERS COMPRISING: (A) FIRST TUBULAR MEANS POSITIONED LONGITUDINALLY OF AND SECURED TO THE REAR PORTIONS OF THE FRAME MEMBERS, (B) SECOND TUBULAR MEANS SLIDABLY POSITIONED IN THE FIRST TUBULAR MEANS, (C) MEANS FOR LOCKING THE SECOND TUBULAR MEANS IN SELECTED LONGITUDINAL POSITIONS RELATIVE TO THE FIRST SELECTED LONGITUDINAL POSITIONS RELATIVE TO THE FIRST TUBULAR MEANS, (D) TRANSVERSE BEAM MEANS HAVING AN UPRIGHT WALL SETHEREWITH TO SELECTED LONGITUDINAL POSITIONS (E) A PAIR OF UPRIGHT ANGLE MEMBERS HAVING LONGITUDINAL FLANGES AND TRANSVERSE FLANGES, SAID ANGLE MEMBERS POSITIONED IN A SPACED SUBSTANTIALLY PARALLEL SECURED BY-SIDE RELATION WITH THE LONGITUDINAL FLANGES SECURED TO THE UPRIGHT WALL AND THE TRANSVERSE FLANGES FACING EACH OTHER, (F) A PLURALITY OF TEETH MEANS SECURED TO THE TRANSVERSE FLANGES SAID TEETH BEING SPACED ALONG THE LENGTH OF THE TRANSVERSE FLANGES AND PROJECTED TOWARD THE UPRIGHT WALL, (G) BLOCK MEANS HAVING A LATERAL EARS SELECTIVELY POSITIONABLE BETWEEN PAIRS OF TEETH ON THE TRANSVERSE FLANGES TO ADJUST THE ELEVATION OF THE BLOCK MEANS AND A TABLE CARRYING A TOW BALL PROJECTED BETWEEN SAID TRANSVERSE FLANGES, AND (H) WEDGE MEANS POSITIONABLE BETWEEN SAID UPRIGHT WALL AND BLOCK MEANS FOR HOLDING THE BLOCK MEANS IN ENGAGEMENT WITH THE TRANSVERSE FLANGES.
Claim 2
Dependent Claim
215 words
A HITCH FOR EFFECTING A CONNECTION BETWEEN A TRAILER AND A TRUCK HAVING A PAIR OF LONGITUDINAL FRAME MEMBERS COMPRISING: (A) FIRST TUBULAR MEANS POSITIONED LONGITUDINALLY OF AND SECURED TO THE REAR PORTIONS OF THE FRAME MEMBERS, (B) SECOND TUBULAR MEANS SLIDABLY POSITIONED IN THE FIRST TUBULAR MEANS, (C) MEANS FOR LOCKING THE SECOND TUBULAR MEANS IN SELECTED LONGITUDINAL POSITIONS RELATIVE TO THE FIRST SELECTED LONGITUDINAL POSITIONS RELATIVE TO THE FIRST TUBULAR MEANS, (D) TRANSVERSE BEAM MEANS HAVING AN UPRIGHT WALL SETHEREWITH TO SELECTED LONGITUDINAL POSITIONS (E) A PAIR OF UPRIGHT ANGLE MEMBERS HAVING LONGITUDINAL FLANGES AND TRANSVERSE FLANGES, SAID ANGLE MEMBERS POSITIONED IN A SPACED SUBSTANTIALLY PARALLEL SECURED BY-SIDE RELATION WITH THE LONGITUDINAL FLANGES SECURED TO THE UPRIGHT WALL AND THE TRANSVERSE FLANGES FACING EACH OTHER, (F) A PLURALITY OF TEETH MEANS SECURED TO THE TRANSVERSE FLANGES SAID TEETH BEING SPACED ALONG THE LENGTH OF THE TRANSVERSE FLANGES AND PROJECTED TOWARD THE UPRIGHT WALL, (G) BLOCK MEANS HAVING A LATERAL EARS SELECTIVELY POSITIONABLE BETWEEN PAIRS OF TEETH ON THE TRANSVERSE FLANGES TO ADJUST THE ELEVATION OF THE BLOCK MEANS AND A TABLE CARRYING A TOW BALL PROJECTED BETWEEN SAID TRANSVERSE FLANGES, AND (H) WEDGE MEANS POSITIONABLE BETWEEN SAID UPRIGHT WALL AND BLOCK MEANS FOR HOLDING THE BLOCK MEANS IN ENGAGEMENT WITH THE TRANSVERSE FLANGES.
References Cited (Backward Citations)
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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) | 1969-08-29 | 1970-02-28 | 1970-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-29 | 1974-02-28 | 1974-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-29 | 1978-02-28 | 1978-08-30 | $7700.00 | Window Closed / Lapsed |