US3170715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tractor tandem coupling
Assignee: Individual
•
Filing: 1962-10-23
•
Granted: 1965-02-23
•
Expires: 1982-10-23
Abstract
No abstract record available.
Inventors
- 👤 Harvey A Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:12
CPC Classifications
B; B62; B62D; B62D49/00; B62D49/06; B62D49/0621; B62D49/0642; B62D49/0692
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
134 words
A TRACTOR COUPLING FOR COUPLING TOGETHER A PAIR OF TRACTORS IN TANDEM RELATIONSHIP, SAID COUPLING COMPRISING (A) A TOWBAR, (B) A FIRST HITCHING MEANS AT ONE END OF SAID TOWBAR ADAPTED TO PERMIT VERTICAL OSCILLATORY MOVEMENT OF SAID TOWBAR, (C) A SECOND HITCHING MEANS CONNECTED AT THE OTHER END OF SAID TOWBAR ADAPTED FOR HORIZONTAL OSCILLATORY MOVEMENTS OF SAID TOWBAR, (D) A SADDLE HAVING A BASE LONGITUDINALLY SLIDABLY MOUNTED ON SAID TOWBAR, (E) A PAIR LATERALLY SPACED UPSTANDING EARS FORMED ON SAID BASE, (F) EACH OF SAID EARS DEFINING A FORWARDLY OPENING RECESS ADAPTED TO ENGAGE THE FRONT AXLE OF THE REAR ONE OF SAID TRACTOR AND TO SUPPORT THE FRONT WHEEL STRUCTURE THEREOF IN SPACED RELATION TO THE GROUND AND (G) MEANS LIMITILNG FORWARD MOVEMENT OF SAID FRONT AXLE RELATIVE TO SAID SADDLE.
Claim 2
Dependent Claim
134 words
A TRACTOR COUPLING FOR COUPLING TOGETHER A PAIR OF TRACTORS IN TANDEM RELATIONSHIP, SAID COUPLING COMPRISING (A) A TOWBAR, (B) A FIRST HITCHING MEANS AT ONE END OF SAID TOWBAR ADAPTED TO PERMIT VERTICAL OSCILLATORY MOVEMENT OF SAID TOWBAR, (C) A SECOND HITCHING MEANS CONNECTED AT THE OTHER END OF SAID TOWBAR ADAPTED FOR HORIZONTAL OSCILLATORY MOVEMENTS OF SAID TOWBAR, (D) A SADDLE HAVING A BASE LONGITUDINALLY SLIDABLY MOUNTED ON SAID TOWBAR, (E) A PAIR LATERALLY SPACED UPSTANDING EARS FORMED ON SAID BASE, (F) EACH OF SAID EARS DEFINING A FORWARDLY OPENING RECESS ADAPTED TO ENGAGE THE FRONT AXLE OF THE REAR ONE OF SAID TRACTOR AND TO SUPPORT THE FRONT WHEEL STRUCTURE THEREOF IN SPACED RELATION TO THE GROUND AND (G) MEANS LIMITILNG FORWARD MOVEMENT OF SAID FRONT AXLE RELATIVE TO SAID SADDLE.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |