Patent US3172786A successfully refreshed from Google Patents.
US3172786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coloring of anodized aluminum
Assignee: —
•
Filing: —
•
Granted: 1965-03-09
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Expires: 1982-03-09
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:33
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; C25D11/24; C25D11/243
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
65 words
IN THE PROCESS OF COLORING ANODIZED ALUMINUM WITH A DYE FOLLOWED BY SEALING OF THE DYE IN THE ALUMINUM OXIDE COATING, THE IMPROVEMENT WHICH COMPRISES EMPLOYING A DYE SOLUTION CONTAINING FROM 5 TO 100 PERCENT BY WEIGHT OF THE LIQUID PORTION THEREOF OF A SOLVENT FOR THE DYE, SAID SOLVENT BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIMETHYLFORMAMIDE, DIETHYLFORMAMIDE, DIMETHYLACETAMIDE, DIETHYLACETAMIDE AND DIMETHYLSULFOXIDE.
Claim 2
Dependent Claim
65 words
IN THE PROCESS OF COLORING ANODIZED ALUMINUM WITH A DYE FOLLOWED BY SEALING OF THE DYE IN THE ALUMINUM OXIDE COATING, THE IMPROVEMENT WHICH COMPRISES EMPLOYING A DYE SOLUTION CONTAINING FROM 5 TO 100 PERCENT BY WEIGHT OF THE LIQUID PORTION THEREOF OF A SOLVENT FOR THE DYE, SAID SOLVENT BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF DIMETHYLFORMAMIDE, DIETHYLFORMAMIDE, DIMETHYLACETAMIDE, DIETHYLACETAMIDE AND DIMETHYLSULFOXIDE.
References Cited (Backward Citations)
US3019143A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-03-08 | 1968-09-07 | 1969-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-03-08 | 1972-09-07 | 1973-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-03-08 | 1976-09-07 | 1977-03-09 | $7700.00 | Window Closed / Lapsed |