Patent US3355865A successfully refreshed from Google Patents.
US3355865A
Expired / Lapsed
US
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Forage harvester
Assignee: Unisys Corp
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Filing: 1965-06-30
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Granted: 1967-12-05
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Expires: 1985-06-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas W Waldrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:44
CPC Classifications
A; A01; A01D; A01D67/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
A FORAGE HARVESTER COMPRISING A MAIN FRAME, A SUBFRAME, PIVOT MEANS MOUNTING SAID SUB-FRAME ON SAID MAIN FRAME FOR VERTICAL PIVOTAL MOVEMENT BETWEEN LOWER AND UPPER POSITIONS, A LEVER ENGAGING SAID SUB-FRAME, MEANS FULCRUMING SAID LEVER ON SAID MAIN FRAME, A SPRING INTERCONNECTED BETWEEN SAID LEVER AND SAID MAIN FRAME AND BIASING SAID LEVER IN ONE DIRECTION ABOUT SAID FULCRUMING MEANS TO SUPPORT SAID SUB-FRAME IN SAID LOWER POSITION, THE SPRING FORCE SUPPORTING SAID SUB-FRAME DECREASING AS SAID FRAME RISES ABOVE SAID LOWER POSITION, MANUALLY OPERABLE MEANS CONNECTED TO SAID LEVER FOR
Claim 2
Dependent Claim
92 words
A FORAGE HARVESTER COMPRISING A MAIN FRAME, A SUBFRAME, PIVOT MEANS MOUNTING SAID SUB-FRAME ON SAID MAIN FRAME FOR VERTICAL PIVOTAL MOVEMENT BETWEEN LOWER AND UPPER POSITIONS, A LEVER ENGAGING SAID SUB-FRAME, MEANS FULCRUMING SAID LEVER ON SAID MAIN FRAME, A SPRING INTERCONNECTED BETWEEN SAID LEVER AND SAID MAIN FRAME AND BIASING SAID LEVER IN ONE DIRECTION ABOUT SAID FULCRUMING MEANS TO SUPPORT SAID SUB-FRAME IN SAID LOWER POSITION, THE SPRING FORCE SUPPORTING SAID SUB-FRAME DECREASING AS SAID FRAME RISES ABOVE SAID LOWER POSITION, MANUALLY OPERABLE MEANS CONNECTED TO SAID LEVER FOR
References Cited (Backward Citations)
US2694283A
Cited
US3151429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-12-04 | 1971-06-05 | 1971-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-12-04 | 1975-06-05 | 1975-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-12-04 | 1979-06-05 | 1979-12-05 | $7700.00 | Window Closed / Lapsed |