Patent US3615889A successfully refreshed from Google Patents.
US3615889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical treatment of metal
Assignee: Wyeth Holdings LLC
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Filing: 1969-09-04
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Granted: 1971-10-26
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Expires: 1989-09-04
Abstract
Abstract A method for preparing metal surfaces for receipt of a coating such as a paint or adhesive (whereby increased coating adhesion and corrosion resistance is achieved) and the treated metal per se, are disclosed. The method comprises contacting the metal surface with various 8-hydroxy quinoline derivatives.
Inventors
- 👤 Francis Clyde Rauch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:59
CPC Classifications
C; C23; C23C; C23C22/00; C23C22/02; C23C22/05; C23C22/68
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
20 words
An article of manufacture comprising a metal surface having coated thereon a compound having the formula set forth in claim
Claim 2
Dependent Claim
36 words
A method according to claim 1 wherein the metal surface is coated with said compound and a surface coating having groups chemically reactive with at least one of the groups of said compound is coated thereon.
Claim 3
Dependent Claim
36 words
A method according to claim 1 wherein said compound is coated onto said metal surface as a mixture with a surface coating having groups chemically reactive with at least one of the groups of said compound.
Claim 4
Dependent Claim
12 words
A method according to claim 1 wherein said compound is 4-aminomethyl-8-hydroxy quinoline.
Claim 5
Dependent Claim
13 words
A method according to claim 3 wherein said surface coating is a paint.
Claim 6
Dependent Claim
13 words
A method according to claim 4 wherein said surface coating is a paint.
Claim 7
Dependent Claim
13 words
A method according to claim 3 wherein said surface coating is an adhesive.
Claim 8
Dependent Claim
13 words
A method according to claim 4 wherein said surface coating is an adhesive.
Claim 9
Dependent Claim
11 words
An article according to claim 2 wherein said metal is aluminum.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-10-25 | 1975-04-26 | 1975-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-10-25 | 1979-04-26 | 1979-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-10-25 | 1983-04-26 | 1983-10-26 | $7700.00 | Window Closed / Lapsed |