Patent US2476683A successfully refreshed from Google Patents.
US2476683A
Expired / Lapsed
US
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Polishing apparatus
Assignee: Individual
•
Filing: 1948-04-17
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Granted: 1949-07-19
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Expires: 1968-04-17
Abstract
No abstract record available.
Inventors
- 👤 Pieri Gino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:28
CPC Classifications
B; B24; B24B; B24B5/00; B24B5/36; B24B5/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1193453A
Cited
US1030283A
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US1256276A
Cited
US1301679A
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US2336145A
Cited
US2347639A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-18 | 1953-01-17 | 1953-07-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-18 | 1957-01-17 | 1957-07-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-18 | 1961-01-17 | 1961-07-19 | $7700.00 | Window Closed / Lapsed |