Patent US2017487A successfully refreshed from Google Patents.
US2017487A
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Grinding wheel for bristles
Assignee: Pro Phy Lac Tic Brush Co
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Filing: 1935-05-28
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Granted: 1935-10-15
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Expires: 1955-05-28
Abstract
No abstract record available.
Inventors
- 👤 William S Elliot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:40
CPC Classifications
A; A46; A46D; A46D9/00; A46D9/02; B; B24; B24B; B24B19/00; B24B19/16; B24D; B24D7/00; B24D7/18; Y; Y10; Y10S; Y10S451/00; Y10S451/915; Y10S451/916
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) | 1938-10-14 | 1939-04-15 | 1939-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1942-10-14 | 1943-04-15 | 1943-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1946-10-14 | 1947-04-15 | 1947-10-15 | $7700.00 | Window Closed / Lapsed |