Patent US3575916A successfully refreshed from Google Patents.
US3575916A
Expired / Lapsed
US
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Impregnating and coating composition for porous ceramic insulation
Assignee: Vishay Intertechnology Inc
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Filing: 1967-12-08
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Granted: 1971-04-20
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Expires: 1987-12-08
Abstract
Abstract A COATING AND IMPREGNATING COMPOSITION SUITABLE FOR PROVIDING A WATER REPELLENT, ABRASION, SCRATCH, CHIP AND DIRT RESISTANT COATING ON A CERAMIC INSULATING SURFACE COMPRISING A SOLVENT, A SUSPENSION OF A RESIN, A SILICONE AND A PARTIALLY HYDROLYZED TETRA-ALKYL ORTHOSILICATE.
Inventors
- 👤 Lawrence G Bockstie Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:50
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/46; C04B41/49; C04B41/4905; C04B41/495; C04B41/4961; C04B41/50; C04B41/5025; C04B41/5035; C04B41/80; C04B41/81; C04B41/82; C04B41/84; C04B41/85; C04B41/87; C08; C08L; C08L83/00; C08L83/02; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/70
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-04-19 | 1974-10-19 | 1975-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-19 | 1978-10-19 | 1979-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-19 | 1982-10-19 | 1983-04-20 | $7700.00 | Window Closed / Lapsed |