US2875559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of grinding and grinding wheel therefor
Assignee: Oliver Instrument Co
•
Filing: 1956-10-30
•
Granted: 1959-03-03
•
Expires: 1976-10-30
Abstract
No abstract record available.
Inventors
- 👤 Clifford L Garrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:52
CPC Classifications
B; B24; B24B; B24B3/00; B24B3/36; B24D; B24D5/00; B24D5/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US278608A
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US888129A
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US909913A
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US964000A
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US1029406A
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US1582608A
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US2049874A
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US2195050A
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GB523879A
Cited
US2607173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |