US3305025A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-way moldboard plow
Assignee: International Motors LLC
•
Filing: 1963-10-23
•
Granted: 1967-02-21
•
Expires: 1983-10-23
Abstract
No abstract record available.
Inventors
- 👤 Otto E Johnson
- 👤 Ronald T Fulton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 20:02
CPC Classifications
A; A01; A01B; A01B3/00; A01B3/46; A01B3/462
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
136 words
THE COMBINATION WITH A TRACTOR HAVING POWER LIFTED HITCH MEANS THEREON, OF A REVERSIBLE PLOW HAVING A MAIN FRAME CONNECTED TO THE TRACTOR AND VERTICALLY MOVABLE BETWEEN OPERATING AND TRANSPORT POSITIONS, A GENERALLY HORIZONTAL SUB-FRAME CARRYING RIGHT AND LEFT-HAND PLOW UNITS MOUNTED ON THE MAIN FRAME FOR LATERAL SWINGING TO ALTERNATE RIGHT AND LEFT-HAND PLOWING POSITIONS, EACH OF SAID PLOW UNITS COMPRISING AN ALLOCHIRAL PLOW ELEMENT MOUNTED ON THE SUB-FRAME FOR LATERAL SWINGING THEREWITH TO POSITIONS FOR RIGHT AND LEFT-HAND PLOWING, A PAIR OF RIGHT AND LEFT-HAND MATING PLOW ELEMENTS MOUNTED ON THE SUBFRAME, AND MEANS CONNECTED BETWEEN THE MAIN FRAME AND SAID MATING PLOW ELEMENTS FOR SHIFTING THE LATTER RELATIVE TO SAID FIRST PLOW ELEMENT TO ALTERNATELY DISPOSE SAID MATING PLOW ELEMENTS IN RIGHT AND LEFT-HAND PLOWING POSITIONS WITH RESPECT TO SAID FIRST PLOW ELEMENT.
Claim 2
Dependent Claim
136 words
THE COMBINATION WITH A TRACTOR HAVING POWER LIFTED HITCH MEANS THEREON, OF A REVERSIBLE PLOW HAVING A MAIN FRAME CONNECTED TO THE TRACTOR AND VERTICALLY MOVABLE BETWEEN OPERATING AND TRANSPORT POSITIONS, A GENERALLY HORIZONTAL SUB-FRAME CARRYING RIGHT AND LEFT-HAND PLOW UNITS MOUNTED ON THE MAIN FRAME FOR LATERAL SWINGING TO ALTERNATE RIGHT AND LEFT-HAND PLOWING POSITIONS, EACH OF SAID PLOW UNITS COMPRISING AN ALLOCHIRAL PLOW ELEMENT MOUNTED ON THE SUB-FRAME FOR LATERAL SWINGING THEREWITH TO POSITIONS FOR RIGHT AND LEFT-HAND PLOWING, A PAIR OF RIGHT AND LEFT-HAND MATING PLOW ELEMENTS MOUNTED ON THE SUBFRAME, AND MEANS CONNECTED BETWEEN THE MAIN FRAME AND SAID MATING PLOW ELEMENTS FOR SHIFTING THE LATTER RELATIVE TO SAID FIRST PLOW ELEMENT TO ALTERNATELY DISPOSE SAID MATING PLOW ELEMENTS IN RIGHT AND LEFT-HAND PLOWING POSITIONS WITH RESPECT TO SAID FIRST PLOW ELEMENT.
References Cited (Backward Citations)
US573824A
Cited
US785474A
Cited
US1010117A
Cited
GB178786A
Cited
US2723612A
Cited
US3039538A
Cited
US3115191A
Cited
US3212587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |