Patent US3510994A successfully refreshed from Google Patents.
US3510994A
Expired / Lapsed
US
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Method of manufacturing an electrolytic grinding wheel
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1967-05-18
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Granted: 1970-05-12
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Expires: 1987-05-18
Abstract
No abstract record available.
Inventors
- 👤 John J Amero
- 👤 Ronald J Gerry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:29
CPC Classifications
B; B24; B24D; B24D18/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2233176A
Cited
US2578167A
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US2555174A
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US3062633A
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US3216854A
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US3203775A
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US3283448A
Cited
US3433730A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-11 | 1973-11-10 | 1974-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-11 | 1977-11-10 | 1978-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-11 | 1981-11-10 | 1982-05-12 | $7700.00 | Window Closed / Lapsed |