US3239867A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush and brush material
Assignee: Osborn Manufacturing Corp
•
Filing: 1963-11-04
•
Granted: 1966-03-15
•
Expires: 1983-11-04
Abstract
No abstract record available.
Inventors
- 👤 Vernon K Charvat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:18
CPC Classifications
A; A46; A46D; A46D1/00; A46D1/02; A46D1/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
36 words
A BRUSH COMPRISING A SUPPORT AND STIFF SELF-SUPPORTING BRUSH BRISTLES SECURED THERETO AND EXTENDING THEREFROM, SAID BRISTLES EACH HAVING AN ELONGATED CENTRAL CORE WITH AT LEAST ONE HELICALLY DISPOSED RIB OF VIBRATION DAMPING MATERIAL ADHERED THERETO.
Claim 2
Dependent Claim
36 words
A BRUSH COMPRISING A SUPPORT AND STIFF SELF-SUPPORTING BRUSH BRISTLES SECURED THERETO AND EXTENDING THEREFROM, SAID BRISTLES EACH HAVING AN ELONGATED CENTRAL CORE WITH AT LEAST ONE HELICALLY DISPOSED RIB OF VIBRATION DAMPING MATERIAL ADHERED THERETO.
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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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |