US3178876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Windrow lifters
Assignee: Individual
•
Filing: 1961-09-08
•
Granted: 1965-04-20
•
Expires: 1981-09-08
Abstract
No abstract record available.
Inventors
- 👤 Lundberg Olaf Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:34
CPC Classifications
A; A01; A01D; A01D57/00; A01D57/30; Y; Y10; Y10S; Y10S56/00; Y10S56/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
A WINDROW LIFTER EMBODYING AN ELONGATED RECTANGULAR SUPPORTING FRAME COMPRISING A FRONT FRAME MEMBER, A REAR TUBULAR FRAME MEMBER SPACED FROM THE FRONT FRAME MEMBER, AND SPACED APART END MEMBERS, SAID AND MEMBERS, BEING FIXEDLY SECURED TO THE ENDS OF SAID FRONT AND REAR FRAME MEMBERS TO PROVIDE A RUGGED SUPPORTING FRAME, MEANS FOR COUPLING SAID SUPPORTING FRAME TO A TRACTOR, PLATE MEMBERS MOUNTED FOR PIVOTAL MOVEMENT ABOUT THE AXIS OF SAID REAR TUBULAR FRAME MEMBER, A PICKUP DRUM ROTATABLY MOUNTED IN THE FORWARD END PORTIONS OF SAID PLATE MEMBERS, A DRIVE SHAFT LOCATED WITH SAID REAR TUBULAR FRAME MEMBER AND HAVING A DRIVING CONNECTION WITH SAID PICKUP DRUM, AND A TRACTION WHEEL LOCATED AT ONE END OF SAID REAR TUBULAR FRAME MEMBER AND HAVING DRIVING CONNECTION WITH SAID DRIVE SHAFT.
Claim 2
Dependent Claim
131 words
A WINDROW LIFTER EMBODYING AN ELONGATED RECTANGULAR SUPPORTING FRAME COMPRISING A FRONT FRAME MEMBER, A REAR TUBULAR FRAME MEMBER SPACED FROM THE FRONT FRAME MEMBER, AND SPACED APART END MEMBERS, SAID AND MEMBERS, BEING FIXEDLY SECURED TO THE ENDS OF SAID FRONT AND REAR FRAME MEMBERS TO PROVIDE A RUGGED SUPPORTING FRAME, MEANS FOR COUPLING SAID SUPPORTING FRAME TO A TRACTOR, PLATE MEMBERS MOUNTED FOR PIVOTAL MOVEMENT ABOUT THE AXIS OF SAID REAR TUBULAR FRAME MEMBER, A PICKUP DRUM ROTATABLY MOUNTED IN THE FORWARD END PORTIONS OF SAID PLATE MEMBERS, A DRIVE SHAFT LOCATED WITH SAID REAR TUBULAR FRAME MEMBER AND HAVING A DRIVING CONNECTION WITH SAID PICKUP DRUM, AND A TRACTION WHEEL LOCATED AT ONE END OF SAID REAR TUBULAR FRAME MEMBER AND HAVING DRIVING CONNECTION WITH SAID DRIVE SHAFT.
References Cited (Backward Citations)
US1631455A
Cited
US2595177A
Cited
US2582177A
Cited
US2718746A
Cited
US2741892A
Cited
US2992525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |