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Patent US5692197A successfully refreshed from Google Patents.
US3459701A
Expired / Lapsed
US
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Ceramic filled plastic system
Assignee: Lockheed Martin Corp
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Filing: 1964-01-07
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Granted: 1969-08-05
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Expires: 1984-01-07
Abstract
No abstract record available.
Inventors
- 👤 Huel H Chandler Jr
- 👤 Henry P Morrell
- 👤 Paul G Sayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:50
CPC Classifications
F; F41; F41F; F41F3/00; F41F3/04; C; C09; C09D; C09D163/00; C09D177/00; C09D177/06; C09D177/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
131 words
A THERMALLY PROTECTIVE AND CHEMICALLY RESISTANT CERAMIC COATING COMPOSITION COMPRISING ABOUT 40 TO 65 PARTS OF CORSE SOLID FUESED SILICA PARTICLES, ABOUT 12 TO 28 PARTS OF FINE SOLIDS FUSED SILICA PARTICLES, ABOUT 5 TO 16 PARTS OF A SOLID THIXOTROPIC MATERIAL, AND A BINDER RESIN FOR SAID SILICA PARTICLES AND THIXOTROPIC MATERIALS, COMPRISING THE REACTION PRODUCT OF A REACTIVE MIXTURE OF AN EPOXY RESIN CONTAINING REACTIVE EPOXY GROUPS IN TERMINAL LOCATIONS WITH A POLYAMIDE RESIN FORMED BY CONDENSING LONG CHAIN POLYVALENT ALIPHATIC CARBOXYLIC ACIDS AND POLYAMINES; SAID CERAMIC COATING CONTAINING ABOUT 60 TO 75 PARTS SOLIDS AND ABOUT 25 TO 40 PARTS OF SAID BINDER RESIN AND SAID COMPOSITION BEING THIXOTROPIC AND SPREADABLE IN THICK LAYERS PRIOR TO FORMATION OF SAID REACTION PRODUCT AND SAID REACTIVE MIXTURE BEING SELF CURING.
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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) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |