Patent US3613316A successfully refreshed from Google Patents.
US3613316A
Expired / Lapsed
US
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Serrated contact wheel
Assignee: CA ACQUISITION Co CHICAGO ILL A CORP OF
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Filing: 1969-08-11
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Granted: 1971-10-19
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Expires: 1989-08-11
Abstract
Abstract THIS INVENTION RELATES TO A CONTACT WHEEL FOR BACKING COATED ABRASIVE BELTS. THE WHEEL HAS A COMPOSITE WORKING PERIPHERY COMPRISED ON A HARD RUBBER CENTRAL SECTION SUPPORTED BY MARGINAL METAL SECTIONS. THE WORKING PERIPHERY IS SEPRATED HAVING TRANSVERSE LANDS AND SEPRATING GROOVES EXTENDING ENTIRELY ACROSS THE CENTRAL AND MARGINAL SECTIONS.
Inventors
- 👤 Richard L Eten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 15:22
CPC Classifications
B; B24; B24B; B24B21/00; B24B21/04; B24B21/12; B24B21/14
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) | 1974-10-18 | 1975-04-19 | 1975-10-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-18 | 1979-04-19 | 1979-10-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-18 | 1983-04-19 | 1983-10-19 | $7700.00 | Window Closed / Lapsed |