Patent US2297022A successfully refreshed from Google Patents.
US911889A
Expired / Lapsed
US
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Buffing or polishing wheel.
Assignee: Individual
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Filing: 1908-04-27
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Granted: 1909-02-09
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Expires: 1928-04-27
Abstract
No abstract record available.
Inventors
- 👤 Frank Martin Levett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:32
CPC Classifications
B; B24; B24D; B24D13/00; B24D13/02; B24D13/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1912-02-09 | 1912-08-10 | 1913-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1916-02-09 | 1916-08-10 | 1917-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1920-02-09 | 1920-08-10 | 1921-02-09 | $7700.00 | Window Closed / Lapsed |