US3418219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coloring anodized aluminum
Assignee: Lockheed Martin Corp
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Filing: 1966-03-29
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Granted: 1968-12-24
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Expires: 1986-03-29
Abstract
No abstract record available.
Inventors
- 👤 William A Fahlbusch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:55
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18; C25D11/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
72 words
A PROCESS FOR PRODUCING A COLOR ON ANODIZED METAL COMPRISING IMPREGNATING A POROUS ANODIZED LAYER ON SAID METAL WITH A STABLE, AQUEOUS SOLUTION CONTAINING BOTH A PRECIPITANT ION DONOR AND AN ION, SAID SOLUTION BEING UNSTABLE AT AN ELEVATED TEMPERATURE OF A METAL CAPABLE OF FORMING A COLORED PRECIPITATE WITH SAID PRECIPITANT ION AND SUBSEQUENTLY HEATING THE THUS IMPREGNATED ANODIZED LAYER AT A TEMPERATURE EFFECTIVE TO INDUCE FORMATION OF SAID COLORED PRECIPITATE.
Claim 2
Dependent Claim
72 words
A PROCESS FOR PRODUCING A COLOR ON ANODIZED METAL COMPRISING IMPREGNATING A POROUS ANODIZED LAYER ON SAID METAL WITH A STABLE, AQUEOUS SOLUTION CONTAINING BOTH A PRECIPITANT ION DONOR AND AN ION, SAID SOLUTION BEING UNSTABLE AT AN ELEVATED TEMPERATURE OF A METAL CAPABLE OF FORMING A COLORED PRECIPITATE WITH SAID PRECIPITANT ION AND SUBSEQUENTLY HEATING THE THUS IMPREGNATED ANODIZED LAYER AT A TEMPERATURE EFFECTIVE TO INDUCE FORMATION OF SAID COLORED PRECIPITATE.
References Cited (Backward Citations)
US2018388A
Cited
US3152970A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |