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US2924838A
Expired / Lapsed
US
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Brush roll construction
Assignee: IND BRUSH CO Inc
•
Filing: 1954-12-10
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Granted: 1960-02-16
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Expires: 1974-12-10
Abstract
No abstract record available.
Inventors
- 👤 Lloyd E Jones
- 👤 Melvin T Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:23
CPC Classifications
A; A23; A23N; A23N12/00; A23N12/005; Y; Y02; Y02A; Y02A40/00; Y02A40/90
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2734210A
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US1439159A
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US1476113A
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US1744365A
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US1963044A
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US2244110A
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US2267584A
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US2287447A
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US2357892A
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US2651799A
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FR1036806A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-15 | 1963-08-17 | 1964-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-15 | 1967-08-17 | 1968-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-15 | 1971-08-17 | 1972-02-16 | $7700.00 | Window Closed / Lapsed |