US3247082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrodeposition of a corrosion resistant coating
Assignee: Harshaw Chemical Co
•
Filing: 1962-08-07
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Granted: 1966-04-19
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Expires: 1982-08-07
Abstract
No abstract record available.
Inventors
- 👤 Rose Arthur H Du
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:21
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/10; C25D5/12; C25D5/14; C25D5/627; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/934
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
75 words
A PROCESS FOR THE ELECTROLYTIC PREPARATION OF A CORROSION RESISTANT ARTICLE COMPRISING ELECTRODEPOSITING ON A BASIS METAL SELECTED FROM THE CLASS CONSISTING OF ALUMINUM, IRON, AND ZINC AND ALLOYS THEREOF, A METAL UNDERCOAT SELECTED FROM THE CLASS CONSISTING OF COPPER AND NICKEL, ELECTRODEPOSITING A COPPER-NICKEL ALLOY ON SAID METAL UNDERCOAT, ELECTRODEPOSITING A NICKEL COATING ON SAID COPPERNICKEL ALLOY AND ELECTRODEPOSITING A CHROMIUM LAYER ON SAID NICKEL COATING, SAID ELECTRODEPOSITED MATERIALS BEING FREE OF HEAT TREATING.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-18 | 1969-10-18 | 1970-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-18 | 1973-10-18 | 1974-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-18 | 1977-10-18 | 1978-04-19 | $7700.00 | Window Closed / Lapsed |