US2769699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Grinding wheels
Assignee: Saint Gobain Abrasives Inc
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Filing: 1951-06-02
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Granted: 1956-11-06
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Expires: 1971-06-02
Abstract
No abstract record available.
Inventors
- 👤 Frank J Polch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:23
CPC Classifications
C; C09; C09D; C09D161/00; C09D161/04; C09D161/06; B; B24; B24D; B24D3/00; B24D3/02; B24D3/20; C04; C04B; C04B14/00; C04B14/02; C04B14/32; C08; C08L; C08L61/00; C08L61/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A SOLID ABRASIVE BODY COMPRISING ABRASIVE GRAINS OF GRIT SIZE NO. 8 TO NO. 220 OF CRYSTALLINE FUSED ZIRCONIA BONDED WITH THERMO-IRREVERSIBLE ORGANIC BOND SELECTED FROM THE GROUP CONSISTING OF PHENOLIC RESIN, ANILINE FORMALDEHYDE RESIN, NATURAL RUBBER VULCANIZED WITH AT LEAST ONE THIRD OF ITS WEIGHT OF SULPHUR, BUTADIENESTYRENE COPOLYMER VULCANIZED WITH AT LEAST ONE THIRD OF ITS WEIGHT OF SULPHUR, AND BUTADIENE-ACRYLONITRILE COPOLYMER VULCANIZED WITH AT LEAST ONE THIRD OF ITS WEIGHT OF SULPHUR, AND MIXTURES THEREOF.
Claim 2
Dependent Claim
78 words
A SOLID ABRASIVE BODY COMPRISING ABRASIVE GRAINS OF GRIT SIZE NO. 8 TO NO. 220 OF CRYSTALLINE FUSED ZIRCONIA BONDED WITH THERMO-IRREVERSIBLE ORGANIC BOND SELECTED FROM THE GROUP CONSISTING OF PHENOLIC RESIN, ANILINE FORMALDEHYDE RESIN, NATURAL RUBBER VULCANIZED WITH AT LEAST ONE THIRD OF ITS WEIGHT OF SULPHUR, BUTADIENESTYRENE COPOLYMER VULCANIZED WITH AT LEAST ONE THIRD OF ITS WEIGHT OF SULPHUR, AND BUTADIENE-ACRYLONITRILE COPOLYMER VULCANIZED WITH AT LEAST ONE THIRD OF ITS WEIGHT OF SULPHUR, AND MIXTURES THEREOF.
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) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |