Patent US3146560A successfully refreshed from Google Patents.
US3146560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive products
Assignee: Dart Industries Inc
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Filing: 1960-06-14
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Granted: 1964-09-01
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Expires: 1980-06-14
Abstract
No abstract record available.
Inventors
- 👤 Hurst Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:32
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/02; B28D1/12; B24; B24D; B24D11/00; B24D13/00; B24D13/02; B24D13/08; B24D13/14; B24D18/00; B24D18/0081; B24D5/00; B24D5/02; B24D5/04; B24D7/00; B24D7/02; B24D7/04; B24D7/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
AN ELONGATE COHERENT FLEXIBLE MASS THAT CAN BE SHAPED AND HARDENED COMPRISING A RESINOUS MATRIX THAT IS ADVANCED SUFICIENTLY TO PERMIT HANDLING, ABRSIVE GRAINS DISTRIBUTED IN DEPTH IN SAID MASS AND AT THE SURFACE OF SAID MASS AND BONDED IN POSITION BY SAID MATRIX, AND A BUNDLE OF SEPARATE FLEXIBLE LINEAR-FILIFORM REINFORCING
Claim 2
Dependent Claim
52 words
AN ELONGATE COHERENT FLEXIBLE MASS THAT CAN BE SHAPED AND HARDENED COMPRISING A RESINOUS MATRIX THAT IS ADVANCED SUFICIENTLY TO PERMIT HANDLING, ABRSIVE GRAINS DISTRIBUTED IN DEPTH IN SAID MASS AND AT THE SURFACE OF SAID MASS AND BONDED IN POSITION BY SAID MATRIX, AND A BUNDLE OF SEPARATE FLEXIBLE LINEAR-FILIFORM REINFORCING
References Cited (Backward Citations)
US2899288A
Cited
US2232389A
Cited
US2404207A
Cited
US2284715A
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US2680335A
Cited
US2643494A
Cited
US2763105A
Cited
US2730848A
Cited
US2749682A
Cited
US2796337A
Cited
US2760313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |