Patent US3115190A successfully refreshed from Google Patents.
US3115190A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary tiller
Assignee: Individual
•
Filing: 1962-04-30
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Granted: 1963-12-24
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Expires: 1982-04-30
Abstract
No abstract record available.
Inventors
- 👤 Michael R Listiak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:33
CPC Classifications
A; A01; A01B; A01B33/00; A01B33/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
169 words
A TILLER ADAPTED TO BE MOUNTED ON A TRACTOR AND TO BE COMPLETELY SUPPORTED THEREBY DURING OPERATION COMPRISING A FRAME, A PLURALITY OF HINGE PINS COAXIALLY ARRANGED AFFIXED TO THE LOWER PORTION OF SAID FRAME FOR ENGAGING COOPERATING HINGE MEANS ON SAID TRACTOR, CONNECTING MEANS MOUNTED AT AN UPPER PORTION OF SAID FRAME FOR ENGAGING POWER OPERATED MEANS ON SAID TRACTOR ARRANGED TO RAISE AND LOWER SAID FRAME PIVOTALLY ABOUT SAID HINGE PINS, A PLURALITY OF TILLER ASSEMBLIES MOUNTED ON SAID FRAME EACH COMPRISING A ROTATABLY MOUNTED VERTICAL SHAFT, A TILLER HEAD INCLUDING A MOUNTING MEMBER AFFIXED TO THE LOWER END OF SAID SHAFT, A PLURALITY OF SUBSTANTIALLY HORIZONTALLY ORIENTED RADIAL ARMS EACH BEING AFFIXED AT ONE END TO SAID MOUNTING MEMBER IN A SWEPT BACK POSITION FROM THE DIRECTION OF ROTATION OF SAID TILLER HEAD AND HAVING A DOWNWARDLY DIRECTED VERTICAL TILLER BLADE RIGIDLY AFFIXED TO THE OTHER END, AND MEANS FOR TRANSMITTING POWER FROM SAID TRACTOR TO EACH OF SAID VERTICAL SHAFTS TO ROTATE SAID TILLER HEADS.
Claim 2
Dependent Claim
169 words
A TILLER ADAPTED TO BE MOUNTED ON A TRACTOR AND TO BE COMPLETELY SUPPORTED THEREBY DURING OPERATION COMPRISING A FRAME, A PLURALITY OF HINGE PINS COAXIALLY ARRANGED AFFIXED TO THE LOWER PORTION OF SAID FRAME FOR ENGAGING COOPERATING HINGE MEANS ON SAID TRACTOR, CONNECTING MEANS MOUNTED AT AN UPPER PORTION OF SAID FRAME FOR ENGAGING POWER OPERATED MEANS ON SAID TRACTOR ARRANGED TO RAISE AND LOWER SAID FRAME PIVOTALLY ABOUT SAID HINGE PINS, A PLURALITY OF TILLER ASSEMBLIES MOUNTED ON SAID FRAME EACH COMPRISING A ROTATABLY MOUNTED VERTICAL SHAFT, A TILLER HEAD INCLUDING A MOUNTING MEMBER AFFIXED TO THE LOWER END OF SAID SHAFT, A PLURALITY OF SUBSTANTIALLY HORIZONTALLY ORIENTED RADIAL ARMS EACH BEING AFFIXED AT ONE END TO SAID MOUNTING MEMBER IN A SWEPT BACK POSITION FROM THE DIRECTION OF ROTATION OF SAID TILLER HEAD AND HAVING A DOWNWARDLY DIRECTED VERTICAL TILLER BLADE RIGIDLY AFFIXED TO THE OTHER END, AND MEANS FOR TRANSMITTING POWER FROM SAID TRACTOR TO EACH OF SAID VERTICAL SHAFTS TO ROTATE SAID TILLER HEADS.
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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) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |