US3353200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Brush and brush material
Assignee: Osborn Manufacturing Corp
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Filing: 1966-01-27
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Granted: 1967-11-21
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Expires: 1986-01-27
Abstract
No abstract record available.
Inventors
- 👤 Vernon K Charvat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:50
CPC Classifications
A; A46; A46D; A46D1/00; A46D1/02; A46D1/023
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
BRUSH BRISTLE MATERIAL FOR USE IN THE MANUFACTURE OF POWER DRIVEN BRUSHES AND THE LIKE COMPRISING A STRAIGHT HARD WIRE BRISTLE CLOSELY BONDED TO SUBSTANTIALLY STRAIGHT PARALLEL SUPPORTING BRISTLE OF GREATER FATIGUE STRENGTH THAN SAID HARD WIRE BRISTLE.
Claim 2
Dependent Claim
38 words
BRUSH BRISTLE MATERIAL FOR USE IN THE MANUFACTURE OF POWER DRIVEN BRUSHES AND THE LIKE COMPRISING A STRAIGHT HARD WIRE BRISTLE CLOSELY BONDED TO SUBSTANTIALLY STRAIGHT PARALLEL SUPPORTING BRISTLE OF GREATER FATIGUE STRENGTH THAN SAID HARD WIRE BRISTLE.
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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |