US2813814A
Expired / Lapsed
US
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Composition and process for forming phosphate coatings on titanium and zirconium
Assignee: Parker Rust Proof Co
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Filing: 1954-08-05
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Granted: 1957-11-19
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Expires: 1974-08-05
Abstract
No abstract record available.
Inventors
- 👤 Edwin W Goodspeed
- 👤 Frank G Pollard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:59
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/05; C23C22/06; C23C22/34; C23C22/36; C23C22/364; B; B21; B21C; B21C37/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
THE PROCESS OF PRODUCING AN ADHERENT, PROTECTIVE COATING ON A SURFACE OF TITANIUM AND ZIRCONIUM METALSS WHICH COMPRISES CONTACTING A METAL SURFACE WITH AN AQUEOUS SOLUTION CONSISTING ESENTIALLY OF MANGANESE DIHYDROGEN PHOSPHATE, AT LEAST ABOUT 0.05% BY WEIGHT OF ATT LEAST ONE ION SELECTED FROM THE GROUP CONSISTING OF TITANIUM IONS AND ZIRCONIUM IONS, AN OXIDIZING AGENT IN AN AMOUNT HAVING AN EFFECT ON THE COATING-FORMING ABILITY OF SAID SOLUTION EQUIVALENT TO ABOUT 0.5% TO ABOUT 1.3% OF THE NITRATE ION AND THE FLUORIDE IN AN AMOUNT IN EXCESS OF THE CONCENTRATION OF THE ION SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM IONS.
Claim 2
Dependent Claim
105 words
THE PROCESS OF PRODUCING AN ADHERENT, PROTECTIVE COATING ON A SURFACE OF TITANIUM AND ZIRCONIUM METALSS WHICH COMPRISES CONTACTING A METAL SURFACE WITH AN AQUEOUS SOLUTION CONSISTING ESENTIALLY OF MANGANESE DIHYDROGEN PHOSPHATE, AT LEAST ABOUT 0.05% BY WEIGHT OF ATT LEAST ONE ION SELECTED FROM THE GROUP CONSISTING OF TITANIUM IONS AND ZIRCONIUM IONS, AN OXIDIZING AGENT IN AN AMOUNT HAVING AN EFFECT ON THE COATING-FORMING ABILITY OF SAID SOLUTION EQUIVALENT TO ABOUT 0.5% TO ABOUT 1.3% OF THE NITRATE ION AND THE FLUORIDE IN AN AMOUNT IN EXCESS OF THE CONCENTRATION OF THE ION SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND ZIRCONIUM IONS.
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) | 1960-11-18 | 1961-05-20 | 1961-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-11-18 | 1965-05-20 | 1965-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-11-18 | 1969-05-20 | 1969-11-19 | $7700.00 | Window Closed / Lapsed |