Patent US2669075A successfully refreshed from Google Patents.
US2669075A
Expired / Lapsed
US
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Machine for blunting the ends of brush bristles
Assignee: Individual
•
Filing: 1950-09-15
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Granted: 1954-02-16
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Expires: 1970-09-15
Abstract
No abstract record available.
Inventors
- 👤 Dreyfus Sylvain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:18
CPC Classifications
B; B24; B24B; B24B19/00; B24B19/16; A; A46; A46D; A46D9/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1495747A
Cited
US1705767A
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US1888675A
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US2227126A
Cited
US2365396A
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US2419739A
Cited
US2449387A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-15 | 1957-08-17 | 1958-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-15 | 1961-08-17 | 1962-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-15 | 1965-08-17 | 1966-02-16 | $7700.00 | Window Closed / Lapsed |