Patent US3298140A successfully refreshed from Google Patents.
US3298140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool fixture
Assignee: Joslyn Manufacturing and Supply Co
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Filing: 1964-05-20
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Granted: 1967-01-17
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Expires: 1984-05-20
Abstract
No abstract record available.
Inventors
- 👤 Paul J Enyeart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:58
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/18; B24B5/307
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
124 words
A CENTERLESS GRINDER SETUP ASSEMBLY COMPRISING A CENTERLESS GRINDING MACHINE OF THE TYPE HAVING A GRINDING WHEEL, A REGULATING WHEEL, AND MEANS FOR MOVING SAID WHEELS TOWARD AND AWAY FROM EACH OTHER TO ACCURATELY ADJUST THE SPACING OF SAID WHEELS; AND A WORK REST CLAMPED TO SAID MACHINE FOR SUPPORTING WORK MATERIAL BETWEEN SAID WHEELS, SAID REST INCLUDING A WORK SUPPORT BASE BLADE, SPACED HARDENED PINS PROJECTING FROM THE TOP OF SAID BASE BLADE ADJACENT RESPECTIVE ENDS THEREOF, AND AN INTERCHANGEABLE TOP BLADE PROVIDED WITH HOLES ALIGNED TO RECEIVE SAID PINS TO PROVIDE FOR ASSEMBLY OF SAID TOP BLADE WITH SAID BASE BLADE, THE HEIGHT OF SAID TOP BLADE BEING OF A DIMENSION DETERMINED BY THE DIAMETER OF WOR MATERIAL GROUND BY SAID MACHINE.
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) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |