US3142080A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Double end brush
Assignee: Osborn Manufacturing Corp
•
Filing: 1962-02-06
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Granted: 1964-07-28
•
Expires: 1982-02-06
Abstract
No abstract record available.
Inventors
- 👤 Brooks E Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:55
CPC Classifications
B; B23; B23B; B23B51/00; B23B51/08; A; A46; A46B; A46B7/00; A46B7/06; A46B7/08; B24; B24D; B24D13/00; B24D13/02; B24D13/10; Y; Y10; Y10T; Y10T408/00; Y10T408/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A DOUBLE END BRUSH COMPRISING A CENTRAL RETAINING MEMBER, BRUSH FILAMENTS PROJECTING AXIALLY OF SAID CENTRAL RETAINING MEMBER, AND MEANS PROJECTING INWARDLY FROM SAID RETAINING MEMBER WITH AN HOURGLASS PROFILE OPENING EXTENDING AXIALLY THROUGH SAID INWARDLY PROJECTING MEANS AND SAID BRUSH.
Claim 2
Dependent Claim
41 words
A DOUBLE END BRUSH COMPRISING A CENTRAL RETAINING MEMBER, BRUSH FILAMENTS PROJECTING AXIALLY OF SAID CENTRAL RETAINING MEMBER, AND MEANS PROJECTING INWARDLY FROM SAID RETAINING MEMBER WITH AN HOURGLASS PROFILE OPENING EXTENDING AXIALLY THROUGH SAID INWARDLY PROJECTING MEANS AND SAID BRUSH.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-28 | 1968-01-27 | 1968-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-28 | 1972-01-27 | 1972-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-28 | 1976-01-27 | 1976-07-28 | $7700.00 | Window Closed / Lapsed |