Patent US3814731A successfully refreshed from Google Patents.
US3814731A
Expired / Lapsed
US
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Agents for the manufacture of non-stick coatings
Assignee: Wacker Chemie AG
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Filing: 1972-06-22
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Granted: 1974-06-04
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Expires: 1992-06-22
Abstract
Abstract A NON-STICK COATING COMPOSITON COMPRISING (1) ORGANOPOLYSILOXANES HAVING SILICON BONDED VINYL GROUPS AS THE TERMINAL UNITS, (2) ORGANOPOLYSILOXANES HAVING AT LEAST 3 SILICON BONDED HYDROGEN ATOMS PER MOLECULE AND (3) A CURING CATALYST OBTAINED FROM THE REACTION OF CHLOROPLATINIC ACID AND KETONE. THE COMPOSITION MAY BE APPLIED TO ANY SOLID SURFACE AND CURED AT AN ELEVATED TEMPERATURE TO FORM A NON-STICK COATING THEREON.
Inventors
- 👤 S Nitzsche
- 👤 H Marwitz
- 👤 F Hockemeyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:36
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/24; D21H19/32; C; C08; C08L; C08L83/00; C08L83/04; C08G; C08G77/00; C08G77/04; C08G77/12; C08G77/20; C08G77/42; C08G77/44
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) | 1977-06-03 | 1977-12-03 | 1978-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-03 | 1981-12-03 | 1982-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-03 | 1985-12-03 | 1986-06-04 | $7700.00 | Window Closed / Lapsed |