US3183979A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vibrating plow
Assignee: EVANS TANKCAR Co
•
Filing: 1964-01-03
•
Granted: 1965-05-18
•
Expires: 1984-01-03
Abstract
No abstract record available.
Inventors
- 👤 Thelmer A Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:46
CPC Classifications
A; A01; A01B; A01B13/00; A01B13/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN A PLOW HAVING (A) A FRAME, (B) A HITCH ON THE FRAME FOR ATTACHING IT TO A DRAFT VEHICLE, (C) A TOOL BAR ATTACHED TO THE FRAME, (D) AT LEAST ONE SHANK DEPENDING FROM THE TOOL BAR, AND (E) GROUND ENGAGING WHEELS ON THE FRAME; THE IMPROVEMENT COMPRISING: (F) TWO WEIGHTS MOUNTED ON THE FRAME FOR PERIODIC MOVEMENT, (G) GEARING INTERCONNECTING SAID WEIGHTS, (H) THE GEARING CAUSING THE HORIZONTAL COMPONENT OF MOTION OF ONE WEIGHT TO BE EQUAL AND IN THE SAME DIRECTION AS THE HORIZONTAL COMPONENT OF MOTION OF THE OTHER WEIGHT, AND
Claim 2
Dependent Claim
95 words
IN A PLOW HAVING (A) A FRAME, (B) A HITCH ON THE FRAME FOR ATTACHING IT TO A DRAFT VEHICLE, (C) A TOOL BAR ATTACHED TO THE FRAME, (D) AT LEAST ONE SHANK DEPENDING FROM THE TOOL BAR, AND (E) GROUND ENGAGING WHEELS ON THE FRAME; THE IMPROVEMENT COMPRISING: (F) TWO WEIGHTS MOUNTED ON THE FRAME FOR PERIODIC MOVEMENT, (G) GEARING INTERCONNECTING SAID WEIGHTS, (H) THE GEARING CAUSING THE HORIZONTAL COMPONENT OF MOTION OF ONE WEIGHT TO BE EQUAL AND IN THE SAME DIRECTION AS THE HORIZONTAL COMPONENT OF MOTION OF THE OTHER WEIGHT, AND
References Cited (Backward Citations)
US1225353A
Cited
GB519046A
Cited
US2633781A
Cited
US2704021A
Cited
US2725799A
Cited
US2772617A
Cited
US2830519A
Cited
DE1022404B
Cited
US3103250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-17 | 1968-11-16 | 1969-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-17 | 1972-11-16 | 1973-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-17 | 1976-11-16 | 1977-05-18 | $7700.00 | Window Closed / Lapsed |