Patent US3555797A successfully refreshed from Google Patents.
US3555797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flail assembly
Assignee: BT Commercial Corp
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Filing: 1968-07-08
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Granted: 1971-01-19
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Expires: 1988-07-08
Abstract
Abstract A FAIL ASSEMBLY INCLUDES A PLURALITY OF GENERALLY USHAPED BRACKET MEMBERS SECURED THERETO. A GENERALLY RING-SHAPED SUPPORT MEMBER IS SWINGABLY SUPPORTED BY THE BIGHT PORTION OF EACH U-SHAPED BRACKET MEMBER, THESE SUPPORT MEMBERS EACH CARRYING A KNIFE MEANS. EACH BRACKET MEMBER IS DETACHABLY SECURED TO THE ROTOR, AND THE DETACHABLE SECURING MEANS ALSO SECURES A RE- TAINER PLATE IN PLACE WITHIN THE BRACKET MEMBER. THE RETAINER PLATE IS GENERALLY L-SHAPED IN CROSS-SECTIONAL CONFIGURATION AND INCLUDES A LONG LEG AND A SHORT LEG, THE SHORT LEG SPANNING THE CENTRAL SPACE OF THE BRACKET MEMBER AND PREVENTING IMPROPER DISPLACEMENT OF THE SUPPORT MEMBER.
Inventors
- 👤 John W Haun
- 👤 Joseph F Prem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:12
CPC Classifications
A; A01; A01D; A01D34/00; A01D34/01; A01D34/412; A01D34/42; A01D34/52; A01D34/535
Claims Analysis
Total Claims: 0
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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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |