Patent US2959474A successfully refreshed from Google Patents.
US2959474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Abrasive bond
Assignee: Union Carbide Corp
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Filing: 1956-01-27
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Granted: 1960-11-08
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Expires: 1976-01-27
Abstract
No abstract record available.
Inventors
- 👤 Rupert S Daniels
- 👤 Anthony J Mostello
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:34
CPC Classifications
B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; B24D3/28; B24D3/285; C; C08; C08L; C08L61/00; C08L61/04; C08L61/06; C08L29/00; C08L29/10
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
84 words
A SYNTHETIC RESIN SUITABLE FOR THE PREPARATION OF RESIN-BONDED ABRASIVE ARTICLES, COMPRISING A PHENOL-ALDEHYDE, ACID-CATALYZED, FUSIBLE, GRINDABLE RESIN WHEREIN THE PHENOL COMPONENT IS PRESENT IN MOLAR EXCESS OVER THE ALDEHYDE COMPONENT, AND, IN INTIMATE ADMIXTURE WITH SAID RESIN, A WATER-INSOLUBLE POLYVINYL ALKYL ETHER WHICH HAS A REDUCED VISCOSITY AS DEFINED HEREIN OF MORE THAN 3, SAID RESIN AND SAID ETHER BEING PRESENT IN SAID ADMIXTURE IN THE PROPORTION OF UP TO ABOUT 1 PART OF POLYVINYL ETHER TO ABOUT 7 PARTS OF PHENOL-ALDEHYDE RESIN.
Claim 2
Dependent Claim
84 words
A SYNTHETIC RESIN SUITABLE FOR THE PREPARATION OF RESIN-BONDED ABRASIVE ARTICLES, COMPRISING A PHENOL-ALDEHYDE, ACID-CATALYZED, FUSIBLE, GRINDABLE RESIN WHEREIN THE PHENOL COMPONENT IS PRESENT IN MOLAR EXCESS OVER THE ALDEHYDE COMPONENT, AND, IN INTIMATE ADMIXTURE WITH SAID RESIN, A WATER-INSOLUBLE POLYVINYL ALKYL ETHER WHICH HAS A REDUCED VISCOSITY AS DEFINED HEREIN OF MORE THAN 3, SAID RESIN AND SAID ETHER BEING PRESENT IN SAID ADMIXTURE IN THE PROPORTION OF UP TO ABOUT 1 PART OF POLYVINYL ETHER TO ABOUT 7 PARTS OF PHENOL-ALDEHYDE RESIN.
Claim 3
Dependent Claim
18 words
A HEAT-HARDENABLE RESIN, COMPRISING THE SYNTHETIC RESIN OF CLAIM 1 AND A HEAT-HARDENING AGENT THEREFOR IN ADMIXTURE THEREWITH.
Claim 4
Dependent Claim
20 words
AN ABRASIVE ARTICLE COMPRISING ABRASIVE GRAINS AND, BONDED THEREWITH IN HEAT-HARDENED CONDITION, A SYNTHETIC RESIN AS DEFINED IN CLAIM 9.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |