Patent US3605344A successfully refreshed from Google Patents.
US3605344A
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US
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Grinding machine
Assignee: Heald Machine Co
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Filing: 1969-11-24
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Granted: 1971-09-20
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Expires: 1989-11-24
Abstract
Abstract THIS INVENTION RELATES TO A GRINDING MACHINE AND, MORE PARTICULARLY, TO APPARATUS FOR GENERATING A SURFACE OF REVOLUTION BY THE ABRASIVE PROCESS, WHEREIN MEANS IS PROVIDED FOR ASSURING THAT THE AMOUNT OF MATERIAL REMOVED FROM AN ABRASIVE WHEEL DURING A DRESSING OPERATION IS THE SAME IRRESPECTIVE OF VARIATIONS IN THE AMOUNT OF WEAR ON THE WHEEL.
Inventors
- 👤 Robert S Hahn
- 👤 Edward G Robillard
- 👤 Richard P Lindsay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:33
CPC Classifications
B; B24; B24B; B24B49/00; B24B49/18; B23; B23Q; B23Q15/00; B23Q15/007; B23Q15/013
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) | 1974-09-19 | 1975-03-21 | 1975-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-19 | 1979-03-21 | 1979-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-19 | 1983-03-21 | 1983-09-20 | $7700.00 | Window Closed / Lapsed |