Patent US4803381A successfully refreshed from Google Patents.
US3400527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flail knife mounting
Assignee: Case LLC
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Filing: 1965-12-13
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Granted: 1968-09-10
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Expires: 1985-12-13
Abstract
No abstract record available.
Inventors
- 👤 Robert W Woodring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:47
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/52; A01D34/535
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A FLAIL KNIFE AND MOUNTING FOR USE WITH A ROTARY SHAFT, COMPRISING, LUGS SECURED TO THE SHAFT, AN AXIALLY POSITIONED MOUNTING ELEMENT SUPPORTED BY THE LUGS, A KNIFE, AND A RING SWINGABLY SUPPORTING THE KNIFE ON THE MOUNTING ELEMENT, THE RING HAVING A HOOK AND BEING MOUNTABLE ON THE MOUNTING ELEMENT BY HOOKING THE HOOK SUBSTANTIALLY NORMAL TO SAID RING TRANSVERSELY THEREOVER.
Claim 2
Dependent Claim
62 words
A FLAIL KNIFE AND MOUNTING FOR USE WITH A ROTARY SHAFT, COMPRISING, LUGS SECURED TO THE SHAFT, AN AXIALLY POSITIONED MOUNTING ELEMENT SUPPORTED BY THE LUGS, A KNIFE, AND A RING SWINGABLY SUPPORTING THE KNIFE ON THE MOUNTING ELEMENT, THE RING HAVING A HOOK AND BEING MOUNTABLE ON THE MOUNTING ELEMENT BY HOOKING THE HOOK SUBSTANTIALLY NORMAL TO SAID RING TRANSVERSELY THEREOVER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |