US3100310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Simplified brush construction
Assignee: PPG Industries Inc
•
Filing: 1959-10-26
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Granted: 1963-08-13
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Expires: 1979-10-26
Abstract
No abstract record available.
Inventors
- 👤 James K Polk
- 👤 Carroll L Woody
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:25
CPC Classifications
A; A46; A46B; A46B15/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
143 words
A BRUSH COMPRISING A KNOT OF BRISTLES AND A HANDLE, THE BUTT PORTION OF THE KNOT AND THE DISTAL END OF THE HANDLE BEING OF SUBSTANTIALLY THE SAME SECTIONAL DIMENSIONS, AND THE DISTAL END OF THE HANDLE BEING AXIALLY BORED AND BEING PROVIDED WITH A DIMATETRICALLY TRANSVERSELY DISPOSED SLOT WHEREIN THE SIDE WALLS ARE PARALLEL TO EACH OTHER AND ARE PARALLEL TO THE AXIS OF THE BRUSH, THE BUTT PORTIONS OF THE BRISTLES IN THE KNOT BEING EMBEDDED IN CEMENT, THE CEMENT FURTHER ADHERING DIRECTLY TO THE DISTAL END OF THE HANDLE AND FILLING AND ADHERING TO THE SIDES OF THE BORE AND THE SLOT TO PROVIDE AN INTEGRAL STEM PORTION HAVING FINS PROJECTING INTO THE SLOT WHEREBY FIRMLY TO ANCHOR THE KNOT ON THE HANDLE, THE BUTT PORTIONS OF THE BRISTLES BEING IN SUBSTANTIAL CONTACT WITH THE DISTAL END OF THE HANDLE.
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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) | 1966-08-12 | 1967-02-11 | 1967-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-08-12 | 1971-02-11 | 1971-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-08-12 | 1975-02-11 | 1975-08-13 | $7700.00 | Window Closed / Lapsed |