Patent US3195993A successfully refreshed from Google Patents.
US3195993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Epoxy resin coated abrasive
Assignee: Saint Gobain Abrasives Inc
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Filing: 1961-06-21
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Granted: 1965-07-20
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Expires: 1981-06-21
Abstract
No abstract record available.
Inventors
- 👤 Matthew T Gladstone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:21
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D3/30; C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G59/4042; C08G59/50; C08G59/56
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
69 words
A COATED ABRASIVE SHEET COMPRISING A FLEXIBLE BACKING MEMBER, ABRASIVE GRAINS BONDED THERETO BY A MAKER COAT OF ADHESIVE, AND A SIZE COAT OF ADHESIVE OVERLYING SAID MAKER COAT CONSISTING ESSENTIALLY OF THE REACTION PRODUCT OF AN EPOXY ETHER HAVING AN EPOXY EQUIVALENT OF FROM 450 TO 4000 AND FROM 1 TO 10% BY WEIGHT OF AMINE FROM THE REACTION PRODUCT OF (1) A HYDROXY-CARBONYL COMPOUND OF THE STRUCTURE:
References Cited (Backward Citations)
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US2585115A
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US2865886A
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US2819233A
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US2824851A
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US2862806A
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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) | 1968-07-19 | 1969-01-18 | 1969-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-19 | 1973-01-18 | 1973-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-19 | 1977-01-18 | 1977-07-20 | $7700.00 | Window Closed / Lapsed |