Patent US557291A successfully refreshed from Google Patents.
Patent US3561202A successfully refreshed from Google Patents.
US3561202A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Side sharpenable cutters
Assignee: Oregon Tool Inc
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Filing: 1970-02-06
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Granted: 1971-02-09
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Expires: 1990-02-06
Abstract
Abstract SIDE SHARPENABLE CUTTERS MOUNTED IN A CUTTING CHAIN AND ON A BELT FOR A MOWER AND A CLOTH CUTTING MACHINE, AND SHARPENABLE BY ANNULAR, SELF-DRESSING ABRASIVE MEMBERS PUSHED AGAINST A FORWARD END SURFACE OF A SIDE CUTTER PLATE OF EACH CUTTER AS THE CUTTER IS ADVANCED PAST THE ABRASIVE MEMBER. ONE FORM OF CUTTER HAS THE SIDE CUTTER PLATE TWISTED SO THAT THE FORWARD END IS OFFSET FROM THE BODY AND ANOTHER CUTTER HAS THE BODY SO TILTED RELATIVE TO THE BELT THAT THE SIDE CUTTER PLATE EXTENDS ANGULARLY RELATIVE TO THE BELT. A CLOTH CUTTING CUTTER HAS A CUPPED PLATE WITH THE CUTTING EDGE AT THE RIM. ONE CUTTER IS MOUNTED ON A BELT BY RIVETS SECURING A BODY THEREOF TO THE BELT.
Inventors
- 👤 Myron D Tupper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:43
CPC Classifications
A; A01; A01D; A01D75/00; A01D75/08; A01D34/00; A01D34/01; A01D34/83
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) | 1974-02-08 | 1974-08-10 | 1975-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-08 | 1978-08-10 | 1979-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-08 | 1982-08-10 | 1983-02-09 | $7700.00 | Window Closed / Lapsed |