Patent JPH1111192A successfully refreshed from Google Patents.
US3073760A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealing of anodized coatings
Assignee: Kaiser Aluminum and Chemical Corp
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Filing: 1959-05-05
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Granted: 1963-01-15
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Expires: 1979-05-05
Abstract
No abstract record available.
Inventors
- 👤 Henry J Wittrock
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:18
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; C25D11/24; C25D11/246
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
IN THE ART OF TREATING PROTECTIVE OXIDE COATINGS ON ALUMINIUM METAL, TO SUBSTANTIALLY REDUCE THEIR SENSITIVITY TO FINGERPRINTING THE IMPROVEMENT COMPRISING IMMERSING THE OXIDE COATED ALUMINIUM METAL IN A WARM AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF A SALT OF CARBONIC ACID AND A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METALS, BALANCE WATER, SAID SOLUTION BEING MAINTAINED AT A PH OF FROM 5.0 TO 6.0 AND AT A TEMPERATURE OF FROM 180*F. TO 212*F.
Claim 2
Dependent Claim
77 words
IN THE ART OF TREATING PROTECTIVE OXIDE COATINGS ON ALUMINIUM METAL, TO SUBSTANTIALLY REDUCE THEIR SENSITIVITY TO FINGERPRINTING THE IMPROVEMENT COMPRISING IMMERSING THE OXIDE COATED ALUMINIUM METAL IN A WARM AQUEOUS SOLUTION CONSISTING ESSENTIALLY OF A SALT OF CARBONIC ACID AND A METAL SELECTED FROM THE GROUP CONSISTING OF ALKALI AND ALKALINE EARTH METALS, BALANCE WATER, SAID SOLUTION BEING MAINTAINED AT A PH OF FROM 5.0 TO 6.0 AND AT A TEMPERATURE OF FROM 180*F. TO 212*F.
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |