Patent US2508073A successfully refreshed from Google Patents.
US2508073A
Expired / Lapsed
US
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Buffing wheel
Assignee: Individual
•
Filing: 1947-09-29
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Granted: 1950-05-16
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Expires: 1967-09-29
Abstract
No abstract record available.
Inventors
- 👤 John C Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:47
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US226054A
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US246959A
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US520516A
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US895641A
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US911889A
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US981841A
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US2108985A
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US2134676A
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US2121496A
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US2405524A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-15 | 1953-11-14 | 1954-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-15 | 1957-11-14 | 1958-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-15 | 1961-11-14 | 1962-05-16 | $7700.00 | Window Closed / Lapsed |