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Patent US3092523A successfully refreshed from Google Patents.
US3092523A
Expired / Lapsed
US
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Method of dyeing anodized aluminum articles
Assignee: Individual
•
Filing: 1961-04-14
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Granted: 1963-06-04
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Expires: 1981-04-14
Abstract
No abstract record available.
Inventors
- 👤 Howard A Fromson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:27
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; C25D11/24
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
THE METHOD OF PRODUCING TWO TONES ON THE ANODIZED SURFACE OF AN ALUMINUM ARTICLE, WHICH COMPRISES COATING A PREDETERMINED PART OF THE ANODIZED SURFACE OF THE ARTICLE WITH AN AQUEOUS SOLUTION OF METHYLCELLULOSE HAVING THE PROPERTIES OF BEING SOLUBLE IN WATER AT ROOM TEMPERATURE AND OF CELLING INTO INSOLUBLE FORM AT ELEVATED TEMPERATURE, IMMERSING THE COATED ARTICLE IN AN AQUEOUS DYE BATH AT A TEMPERATURE IN THE GELATION RANGE OF THE METHYLCELLULOSE TO CAUSE THE COATING TO GEL INTO WATER INSOLUBLE FORM AND AT THE SAME TIME TO DYE THE EXPOSED PART OF THE ANODIZED SURFACE, AND WASHING OFF WITH WATER THE COATING FROM SAID SURFACE AT THE TEMPERATURE AT WHICH THE METHYLCELLULOSE IS SOLUBLE IN WATER.
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) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |