Patent US3451171A successfully refreshed from Google Patents.
US3451171A
Expired / Lapsed
US
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Vibratory grinding machine
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1966-11-29
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Granted: 1969-06-24
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Expires: 1986-11-29
Abstract
No abstract record available.
Inventors
- 👤 Loring Coes Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:42
CPC Classifications
B; B24; B24B; B24B1/00; B24B1/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2504831A
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US2580716A
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US2695478A
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US2855733A
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US2989824A
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US3099902A
Cited
US3032931A
Cited
US3325946A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-23 | 1972-12-23 | 1973-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-23 | 1976-12-23 | 1977-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-23 | 1980-12-23 | 1981-06-24 | $7700.00 | Window Closed / Lapsed |