US3459600A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel zinc coating composition and method
Assignee: Todco Chemical Co Inc
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Filing: 1966-11-07
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Granted: 1969-08-05
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Expires: 1986-11-07
Abstract
No abstract record available.
Inventors
- 👤 Rudolf P Sedlak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:03
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/34; C23C22/36; C23C22/362
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
AN AQUEOUS ZINC PHOSPHATE COATING COMPOSITION HAVING AS ESSENTIAL IONIC INGREDIENTS THEREIN ABOUT 0.5% TO 4.0% BY WEIGHT PHOSPHATE ION, ABOUT 0.2% TO 1.0% NITRATE ION, ABOUT 0.1% TO 1.0% OF AN ION SELECTED FROM THE GROUP CONSISTING OF NICKEL AND COBALT IONS, AT LEAST A SUFFICIENT AMOUNT OF AN ION SELECTED FROM THE GROUP CONSISTING OF ZINC ION AND MANGANESE IONS TO FORM ZINC OR MANGANESE DIHYDROGEN PHOSPHATE, ABOUT 0.03% TO 1.0% FLUORIDE ION, AND, AS A COMPUND, ABOUT 0.125% TO 20% AMINO TRI-(METHYL PHOSPHONIC ACID) BASED ON THE PHOSPHRATE ION CONCENTRATION, AND ABOUT 0.002% 0.008% NITRITE ION.
Claim 2
Dependent Claim
99 words
AN AQUEOUS ZINC PHOSPHATE COATING COMPOSITION HAVING AS ESSENTIAL IONIC INGREDIENTS THEREIN ABOUT 0.5% TO 4.0% BY WEIGHT PHOSPHATE ION, ABOUT 0.2% TO 1.0% NITRATE ION, ABOUT 0.1% TO 1.0% OF AN ION SELECTED FROM THE GROUP CONSISTING OF NICKEL AND COBALT IONS, AT LEAST A SUFFICIENT AMOUNT OF AN ION SELECTED FROM THE GROUP CONSISTING OF ZINC ION AND MANGANESE IONS TO FORM ZINC OR MANGANESE DIHYDROGEN PHOSPHATE, ABOUT 0.03% TO 1.0% FLUORIDE ION, AND, AS A COMPUND, ABOUT 0.125% TO 20% AMINO TRI-(METHYL PHOSPHONIC ACID) BASED ON THE PHOSPHRATE ION CONCENTRATION, AND ABOUT 0.002% 0.008% NITRITE ION.
References Cited (Backward Citations)
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 |