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US3597283A
Expired / Lapsed
US
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Phosphating solutions for use on ferrous metal and zinc surfaces
Assignee: MAN-GILL CHEMICAL COMPANY AN OH CORP
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Filing: 1969-10-08
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Granted: 1971-08-03
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Expires: 1989-10-08
Abstract
Abstract AQUEOUS PHOSPHATING SOLUTIONS CONTAINING PHOSPHATE ION, ZINC ION, NICKEL, COBALT OR COPPER ION, MAGNESIUM ION, NITRITE ION AND ONE OR BOTH OF FLUORIDE AND CHLORIDE IONS ARE USEFUL FOR PRODUCING MICROCRYSTALLINE PHOSPHATE COATINGS ON BOTH FERROUS METAL AND ZINC (E.G., GALVANIZED) SURFACES, ESPECIALLY WHEN THEIR USE IS PRECEDED BY A TITANIUM PHOSPHATE TREATMENT. THE RESULTING COATINGS IMPROVE ADHESION OF SICCATIVE ORGANIC COATINGS TO THE METAL.
Inventors
- 👤 Charles T Snee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:44
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/07; C23C22/08; C23C22/12; C23C22/13; C23C22/34; C23C22/36; C23C22/368; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12535; Y10T428/12583
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-08-02 | 1975-02-01 | 1975-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-02 | 1979-02-01 | 1979-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-02 | 1983-02-01 | 1983-08-03 | $7700.00 | Window Closed / Lapsed |