Patent US5458574A successfully refreshed from Google Patents.
US3233271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-regulating composite brushing tool
Assignee: Osborn Manufacturing Corp
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Filing: 1964-02-27
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Granted: 1966-02-08
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Expires: 1984-02-27
Abstract
No abstract record available.
Inventors
- 👤 Vernon K Charvat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:46
CPC Classifications
A; A46; A46D; A46D1/00; A46D1/02; A46D1/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
A ROTARY BRUSHING TOOL COMPRISING A ROTATABLE SUPPORT AND BRUSHING ELEMENTS SECURED THERETO AND EXTENDING THEREFROM, SAID BRUSHING ELEMENTS COMPRISING FLEXIBLE PLASTIC FINGERS HAVING BOTH A PLURALITY OF HARD BRUSH FILAMENTS OF RELATIVELY LOW FATIGUE STRENGTH AND A PLURALITY OF MUCH MORE DUCTILE BRUSH FILAMENTS OF MUCH GREATER FATGUE STRENGTH EMBEDDED THEREIN IN SUBSTANTIAL PARALLELISM LONGITUDINALLY OF SAID FINGERS.
Claim 2
Dependent Claim
59 words
A ROTARY BRUSHING TOOL COMPRISING A ROTATABLE SUPPORT AND BRUSHING ELEMENTS SECURED THERETO AND EXTENDING THEREFROM, SAID BRUSHING ELEMENTS COMPRISING FLEXIBLE PLASTIC FINGERS HAVING BOTH A PLURALITY OF HARD BRUSH FILAMENTS OF RELATIVELY LOW FATIGUE STRENGTH AND A PLURALITY OF MUCH MORE DUCTILE BRUSH FILAMENTS OF MUCH GREATER FATGUE STRENGTH EMBEDDED THEREIN IN SUBSTANTIAL PARALLELISM LONGITUDINALLY OF SAID FINGERS.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |