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Patent US3614845A successfully refreshed from Google Patents.
US3614845A
Expired / Lapsed
US
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Abrading implement
Assignee: SUPERIOR ABRASIVES Inc
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Filing: 1969-07-18
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Granted: 1971-10-26
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Expires: 1989-07-18
Abstract
Abstract AN ABRASIVE CONE ASSEMBLY COMPRISING A MANDREL AND AN EXPENDABLE CONE TIP. THE ROTARY DRIVING CONNECTION BETWEEN THE ELEMENTS INCLUDES COMPLEMENTARY PROJECTING AND RECESSED PORTION ALLOWING A CLOSED COUPLED CONNECTION THEREBETWEEN, AND FEATURES A PROJECTING PIN ON THE MANDREL PROVIDING ELONGATED CENTRAL BEARING SUPPORT IN THE CONE.
Inventors
- 👤 Herbert E Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:25
CPC Classifications
B; B24; B24D; B24D9/00
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) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |