Patent US1639918A successfully refreshed from Google Patents.
Patent US3598616A successfully refreshed from Google Patents.
US3598616A
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Coating composition with organic base and hexavalent cr
Assignee: Solvay Solutions UK Ltd
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Filing: 1968-09-18
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Granted: 1971-08-10
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Expires: 1988-09-18
Abstract
Abstract A PAINT COMPOSITION HAVING IMPROVED ANTI-CORROSIVE PROPERTIES IS PROVIDED BY ADMIXING WITH THE FILM-FORMING VEHICLE AT LEAST ONE HEXAVALENT CHROMIUM SALT OF CALCIUM, STRONTIUM, BARIUM OR ZINC IN A DEFINED AMOUNT AND A DEFINED PROPORTION AN ORGANIC NITROGENOUS BASE OR SALT THEREOF.
Inventors
- 👤 Geoffrey Moorehouse Gibson
- 👤 Clifford Alfred Vessey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:37
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08; C09D5/082
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) | 1974-08-09 | 1975-02-08 | 1975-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-09 | 1979-02-08 | 1979-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-09 | 1983-02-08 | 1983-08-10 | $7700.00 | Window Closed / Lapsed |