Patent US3529945A successfully refreshed from Google Patents.
US3529945A
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US
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Rotary brushing tool containing nonwoven fibrous material
Assignee: Sherwin Williams Co
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Filing: 1959-08-18
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Granted: 1970-09-22
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Expires: 1979-08-18
Abstract
No abstract record available.
Inventors
- 👤 Vernon K Charvat
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:55
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/04; B24D11/00; B24D11/001; B24D13/00; B24D13/02; B24D13/10; B24D13/12; B24D18/00; B24D5/00; B24D5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A ROTARY ABRASIVE BRUSHING TOOL COMPRISING A MATRIX OF ADHESIVE RESIN BINDER, DISCRETE ABRASIVE MATERIAL DENSELY PERIPHERALLY INCORPORATED THEREIN, AND PERFORMED, SELFSUPPORTING SKELETAL STRUCTURE OF RANDOMLY DISPOSED NONWOVEN FIBROUS MATERIAL ADHESIVELY INTERCONNECTED INTO SAID SKELETAL STRUCTURE BY A FIRST ADHESIVE EXTENDING THROUGHOUT SAID WHEEL, A MULTITUDE OF SMALL CELLS IN SAID MATRIX IN THE INTERSTICES BETWEEN THE ELEMENTS OF ABRASIVE
Claim 2
Dependent Claim
60 words
A ROTARY ABRASIVE BRUSHING TOOL COMPRISING A MATRIX OF ADHESIVE RESIN BINDER, DISCRETE ABRASIVE MATERIAL DENSELY PERIPHERALLY INCORPORATED THEREIN, AND PERFORMED, SELFSUPPORTING SKELETAL STRUCTURE OF RANDOMLY DISPOSED NONWOVEN FIBROUS MATERIAL ADHESIVELY INTERCONNECTED INTO SAID SKELETAL STRUCTURE BY A FIRST ADHESIVE EXTENDING THROUGHOUT SAID WHEEL, A MULTITUDE OF SMALL CELLS IN SAID MATRIX IN THE INTERSTICES BETWEEN THE ELEMENTS OF ABRASIVE
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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) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |