Patent US3849145A successfully refreshed from Google Patents.
US3849145A
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Cordierite binder composition
Assignee: General Electric Co
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Filing: 1970-10-19
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Granted: 1974-11-19
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Expires: 1990-10-19
Abstract
Abstract Lightning arrester resistance material is composed of silicon carbide particles and a binder therefor composed of cordierite formed of a fired mixture of cordierite-forming glass material and cordierite-forming crystalline material.
Inventors
- 👤 J Pitha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:11
CPC Classifications
C; C03; C03C; C03C10/00; C03C10/0036; C03C10/0045; C04; C04B; C04B35/00; C04B35/515; C04B35/56; C04B35/565; H; H01; H01B; H01B1/00; H01B1/14; H01B1/18
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
73 words
A COMPOSITION OF MATTER, SUITABLE FOR USE AS A BINDER, CONSISTING ESSENTIALLY OF A MIXTURE OF ABOUT 6 TO 22.5 PARTS BY WIEGHT OF CORDIERITE-FORMING GLASS MATERIAL AND ABOUT 8 TO 46 PARTS BY WEIGHT OF CORDIERITE-FORMING CRYSTALLINE MATERIAL, IN WHICH THE GLASS MATERIAL IS A FIRED AND VITRIFIED MIXTURE OF SIO2 AL2O3 AND MGO, THE CRYSTALLINE MATERIAL BEING TALC PLUS A MEMBER OF THE GROUP CONSISTING OF A PORCELAIN MIXTURE AND KAOLIN.
Claim 2
Dependent Claim
73 words
A COMPOSITION OF MATTER, SUITABLE FOR USE AS A BINDER, CONSISTING ESSENTIALLY OF A MIXTURE OF ABOUT 6 TO 22.5 PARTS BY WIEGHT OF CORDIERITE-FORMING GLASS MATERIAL AND ABOUT 8 TO 46 PARTS BY WEIGHT OF CORDIERITE-FORMING CRYSTALLINE MATERIAL, IN WHICH THE GLASS MATERIAL IS A FIRED AND VITRIFIED MIXTURE OF SIO2 AL2O3 AND MGO, THE CRYSTALLINE MATERIAL BEING TALC PLUS A MEMBER OF THE GROUP CONSISTING OF A PORCELAIN MIXTURE AND KAOLIN.
Claim 3
Dependent Claim
31 words
A composition as defined in claim 1, said crystalline material comprising, in percent by weight, about 40 to about 60 percent talc and about 60 to about 40 percent porcelain mixture.
Claim 4
Dependent Claim
20 words
A composition as defined in claim 1, said crystalline material comprising talc and kaolin in about equal parts by weight.
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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) | 1977-11-18 | 1978-05-20 | 1978-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-18 | 1982-05-20 | 1982-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-18 | 1986-05-20 | 1986-11-19 | $7700.00 | Window Closed / Lapsed |