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US3061981A
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US
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Grinding and polishing machine
Assignee: Individual
•
Filing: 1961-03-03
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Granted: 1962-11-06
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Expires: 1981-03-03
Abstract
No abstract record available.
Inventors
- 👤 Sr Wesley H Banta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:26
CPC Classifications
B; B24; B24B; B24B31/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US983517A
Cited
US1960447A
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US2145888A
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US2320376A
Cited
US2440931A
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US2466516A
Cited
US2922264A
Cited
US2807918A
Cited
US2949908A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-05 | 1966-05-07 | 1966-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-05 | 1970-05-07 | 1970-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-05 | 1974-05-07 | 1974-11-06 | $7700.00 | Window Closed / Lapsed |