US2920947A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bristles for abrading surfaces
Assignee: EIDP Inc
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Filing: 1956-11-13
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Granted: 1960-01-12
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Expires: 1976-11-13
Abstract
No abstract record available.
Inventors
- 👤 Burk Robert Emmett
- 👤 Keller Edwin Hastings
- 👤 O'flynn Denis Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:50
CPC Classifications
B; B24; B24D; B24D18/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A SYNTHETIC LINEAR POLYAMIDE BRISTLE HAVING A SURFACE COATING OF SYNTHETIC LINEAR POLYAMIDE IN WHICH EXPOSED SOLID ABRASIVE PARTICELS ARE EMBEDDED, SAID PARTICLES BEING HELD IN POSITION BY ADHESION.
Claim 2
Dependent Claim
29 words
A SYNTHETIC LINEAR POLYAMIDE BRISTLE HAVING A SURFACE COATING OF SYNTHETIC LINEAR POLYAMIDE IN WHICH EXPOSED SOLID ABRASIVE PARTICELS ARE EMBEDDED, SAID PARTICLES BEING HELD IN POSITION BY ADHESION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |