Patent US2917800A successfully refreshed from Google Patents.
US2917800A
Expired / Lapsed
US
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Brush holder device
Assignee: DETROIT CENTERLESS GRINDING Co
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Filing: 1958-10-06
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Granted: 1959-12-22
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Expires: 1978-10-06
Abstract
No abstract record available.
Inventors
- 👤 Gee Wendell Philip
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:55
CPC Classifications
B; B44; B44D; B44D3/00; B44D3/12; B44D3/123; Y; Y10; Y10T; Y10T279/00; Y10T279/18; Y10T279/182
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2493108A
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US661677A
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US712239A
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US1807360A
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DE615961C
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US2057980A
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US2483303A
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US2589520A
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US2853336A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-21 | 1963-06-22 | 1963-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-21 | 1967-06-22 | 1967-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-21 | 1971-06-22 | 1971-12-22 | $7700.00 | Window Closed / Lapsed |