US3368828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mower drawbar connection
Assignee: Individual
•
Filing: 1960-11-03
•
Granted: 1968-02-13
•
Expires: 1980-11-03
Abstract
No abstract record available.
Inventors
- 👤 John F Engler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:26
CPC Classifications
A; A01; A01D; A01D67/00; A01D67/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
APPARATUS COMPRISING A DRAWBAR, TRACTION APPARATUS ADAPTED FOR MOVEMENT OVER A SURFACE HAVING VARYING CONTOUR, AND RESILIENT MEANS COUPLING SAID DRAWBAR TO SAID TRACTION APPARATUS, SAID RESILIENT MEANS INCLUDING IN COMBINATION A CLEVIS MEMBER, A PLURALITY OF FASTENERS PIVOTALLY COUPLING SAID CLEVIS MEMBER TO SAID TRACTION APPARATUS, A CYLINDRICAL HOUSING PASSING THROUGH AN APERTURE IN SAID CLEVIS, A THREADED MEMBER PIVOTALLY COUPLED TO SAID DRAWBAR AND PARTIALLY INSERTED IN SAID CYLINDRICAL HOUSING, A THREADED NUT ENGAGING SAID THREADED MEMBER AND ADJACENT SAID CYLINDRICAL HOUSING AND SPRING LONGITUDINALLY ENCLOSING A PORTION OF SAID CYLINDRICAL HOUSING AND POSITIONED INTERMEDIATE SAID CLEVIS MEMBER AND SAID THREADED NUT.
Claim 2
Dependent Claim
104 words
APPARATUS COMPRISING A DRAWBAR, TRACTION APPARATUS ADAPTED FOR MOVEMENT OVER A SURFACE HAVING VARYING CONTOUR, AND RESILIENT MEANS COUPLING SAID DRAWBAR TO SAID TRACTION APPARATUS, SAID RESILIENT MEANS INCLUDING IN COMBINATION A CLEVIS MEMBER, A PLURALITY OF FASTENERS PIVOTALLY COUPLING SAID CLEVIS MEMBER TO SAID TRACTION APPARATUS, A CYLINDRICAL HOUSING PASSING THROUGH AN APERTURE IN SAID CLEVIS, A THREADED MEMBER PIVOTALLY COUPLED TO SAID DRAWBAR AND PARTIALLY INSERTED IN SAID CYLINDRICAL HOUSING, A THREADED NUT ENGAGING SAID THREADED MEMBER AND ADJACENT SAID CYLINDRICAL HOUSING AND SPRING LONGITUDINALLY ENCLOSING A PORTION OF SAID CYLINDRICAL HOUSING AND POSITIONED INTERMEDIATE SAID CLEVIS MEMBER AND SAID THREADED NUT.
References Cited (Backward Citations)
GB188308A
Cited
US2484889A
Cited
US2486605A
Cited
US2682740A
Cited
US2729470A
Cited
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Cited
US2858145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-12 | 1971-08-14 | 1972-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-12 | 1975-08-14 | 1976-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-12 | 1979-08-14 | 1980-02-13 | $7700.00 | Window Closed / Lapsed |