US3334041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated abrasives
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1964-08-28
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Granted: 1967-08-01
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Expires: 1984-08-28
Abstract
No abstract record available.
Inventors
- 👤 Hugh N Dyer
- 👤 James W Sprague
- 👤 Bruce W Duke
- 👤 Charles W Marshall
- 👤 Loran A Henderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:40
CPC Classifications
B; B23; B23H; B23H5/00; B23H5/06; B23H5/08; B24; B24D; B24D11/00; B24D3/00; B24D3/001; B24D3/002; B24D3/004
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A WATER-RESISTANT COATED ABRASIVE MATERIAL ESPECIALLY ADAPTED FOR ELECTROLYTIC GRINDING WHICH COMPRISES: (A) AN ELECTRICALLY NON-CONDUCTIVE FLEXIBLE BACKING MATERIAL HAVING A FRONT SURFACE AND A BACK SURFACE; (B) A PLURALITY OF ELECTRICALLY NON-CONDUCTIVE ABRASIVE GRAINS ADHESIVELY BONDED TO THE FRONT SURFACE OF SAID BACKING MATERIAL; (C) AN ELECTRICALLY CONDUCTIVE LAYER OF MATERIAL OVERLYING SAID FRONT SURFACE AND BONDED THERETO, SAID ABRASIVE GRAINS PROTRUDING THROUGH AND ABOVE SAID ELECTRICALLY CONDUCTIVE LAYER WHEN ELECTROLYTIC GRINDING IS TAKING PLACE; (D) AN ELECTRICALLY CONDUCTIVE LAYER OF MATERIAL OVERLYING SAID BACK SURFACE AND BONDED THERETO; AND (E) ELECTRICALLY CONDUCTIVE MEANS CONNECTING SAID LAYER OF ELECTRICALLY CONDUCTIVE MATERIAL ON SAID FRONT SURFACE WITH SAID LAYER OF ELECTRICALLY CONDUCTIVE MATERIAL ON SAID BACK SURFACE.
Claim 2
Dependent Claim
117 words
A WATER-RESISTANT COATED ABRASIVE MATERIAL ESPECIALLY ADAPTED FOR ELECTROLYTIC GRINDING WHICH COMPRISES: (A) AN ELECTRICALLY NON-CONDUCTIVE FLEXIBLE BACKING MATERIAL HAVING A FRONT SURFACE AND A BACK SURFACE; (B) A PLURALITY OF ELECTRICALLY NON-CONDUCTIVE ABRASIVE GRAINS ADHESIVELY BONDED TO THE FRONT SURFACE OF SAID BACKING MATERIAL; (C) AN ELECTRICALLY CONDUCTIVE LAYER OF MATERIAL OVERLYING SAID FRONT SURFACE AND BONDED THERETO, SAID ABRASIVE GRAINS PROTRUDING THROUGH AND ABOVE SAID ELECTRICALLY CONDUCTIVE LAYER WHEN ELECTROLYTIC GRINDING IS TAKING PLACE; (D) AN ELECTRICALLY CONDUCTIVE LAYER OF MATERIAL OVERLYING SAID BACK SURFACE AND BONDED THERETO; AND (E) ELECTRICALLY CONDUCTIVE MEANS CONNECTING SAID LAYER OF ELECTRICALLY CONDUCTIVE MATERIAL ON SAID FRONT SURFACE WITH SAID LAYER OF ELECTRICALLY CONDUCTIVE MATERIAL ON SAID BACK SURFACE.
References Cited (Backward Citations)
US3162588A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-31 | 1971-01-30 | 1971-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-31 | 1975-01-30 | 1975-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-31 | 1979-01-30 | 1979-08-01 | $7700.00 | Window Closed / Lapsed |