US3606928A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable chisel plow,clamp and shank holder
Assignee: TIC United Corp
•
Filing: 1969-03-14
•
Granted: 1971-09-21
•
Expires: 1989-03-14
Abstract
Abstract A CHISEL PLOW OR CULTIVATOR CLAMP AND SHANK HOLDER UTILIZING TWO U-SHAPED BRACKETS, ONE OF WHICH ACTS AS A SUPPORT FOR THE SHANK, AND THE OTHER OF WHICH ACTS AS A CLAMP TO CLAMP THE SHANK HOLDER ONTO A PLOW SUPPORT BEAM. THE SHANK HOLDER INCLUDES RESILIENT MEANS FOR HOLDING THE SHANK IN WORKING POSITION AND LETTING IT RELEASE WHEN IT STRIKES AN OBSTRUCTION.
Inventors
- 👤 Sherman H Quanbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:15
CPC Classifications
A; A01; A01B; A01B61/00; A01B61/04; A01B61/044; A01B61/046; A01B23/00; A01B23/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |