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US2554777A
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Method and means for rounding off and polishing the ends of thermoplastic brush bristles
Assignee: La Brosse et Dupont SA
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Filing: 1950-03-31
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Granted: 1951-05-29
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Expires: 1970-03-31
Abstract
No abstract record available.
Inventors
- 👤 Dangin Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:57
CPC Classifications
A; A46; A46D; A46D1/00; A46D1/02; A46D1/0284; A46D9/00; A46D9/02; H; H04; H04B; H04B3/00; H04B3/02; H04B3/44; H04J; H04J1/00; H04J1/02; H04J1/10; Y; Y10; Y10S; Y10S264/00; Y10S264/66; Y10S425/00; Y10S425/806
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) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |