Patent US2755607A successfully refreshed from Google Patents.
US2755607A
Expired / Lapsed
US
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Coated abrasives
Assignee: Saint Gobain Abrasives Inc
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Filing: 1953-06-01
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Granted: 1956-07-24
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Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 George L Haywood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 04:53
CPC Classifications
B; B24; B24D; B24D11/00; B24D11/001; B24D11/005
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PATTERNED-SURFACE COATED ABRASIVE ARTICLE COMPRISING A SUBSTANTIALLY PLANE SURFACED BACKING SHEET, A CONTINUOUS ADHESIVE MAKER COAT COVERING THE PLANE SURFACE OF THE BACKING SHEET, SAID MAKER COAT HAVING THEREIN AT LEAST ONE SERIES OF NARROW PARALLEL GROOVES, AND AT LEAST ONE SERIES OF NARROW LANDS BETWEEN THE GROOVES, AND ABRASIVE GRAIN UNIFORMLY EMBEDDED IN SAID MAKER COAT WITH NO APPRECIABLE DIFFERENCE IN ORIENTATION, SIZE, AND QUANTITY OF THE GRAIN HELD IN THE GROOVES AND THE GRAIN HELD IN THE LANDS.
Claim 2
Dependent Claim
81 words
A PATTERNED-SURFACE COATED ABRASIVE ARTICLE COMPRISING A SUBSTANTIALLY PLANE SURFACED BACKING SHEET, A CONTINUOUS ADHESIVE MAKER COAT COVERING THE PLANE SURFACE OF THE BACKING SHEET, SAID MAKER COAT HAVING THEREIN AT LEAST ONE SERIES OF NARROW PARALLEL GROOVES, AND AT LEAST ONE SERIES OF NARROW LANDS BETWEEN THE GROOVES, AND ABRASIVE GRAIN UNIFORMLY EMBEDDED IN SAID MAKER COAT WITH NO APPRECIABLE DIFFERENCE IN ORIENTATION, SIZE, AND QUANTITY OF THE GRAIN HELD IN THE GROOVES AND THE GRAIN HELD IN THE LANDS.
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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) | 1959-07-24 | 1960-01-23 | 1960-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-24 | 1964-01-23 | 1964-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-24 | 1968-01-23 | 1968-07-24 | $7700.00 | Window Closed / Lapsed |