US2999770A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes of chemical nickel plating and baths therefor
Assignee: General American Transportation Corp
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Filing: 1953-08-27
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Granted: 1961-09-12
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Expires: 1973-08-27
Abstract
No abstract record available.
Inventors
- 👤 Gutzeit Gregoire
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:20
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/32; C23C18/34; C23C18/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A METHOD OF DEPOSITIONG NICKEL FROM CHEMICAL REDUCTION PLATING BATH, SAID METHOD COMPRISING IMMERSING A CATALYTIC ARTICLE TO BE COATED IN A SOLUTION OF NICKEL ION AND A HYPOPHOSPHITE REDUCING AGENT CAPABLE OF REDUCING THE NICKEL SOLUTION, SAID SOLUTION HAVING A NICKEL ION CONCENTRATION OF ABOUT 15 GRAMS PER LITER, A HYPOPHOSPHITE ION CONCENTRATION OF ABOUT 15 GRAMS PER LITER, A RELATIVELY HIGH PLATING TEMPERATURE THAT IS DISPOSED NEAR THE BOILING POINT THEREOF, AND AN INITIAL PH WITHIN THE RANGE FROM ABOUT 5. 5 TO 9.1, AND ALLOWING SAID ARTICLE TO REMAIN IN SAID SOLUTION UNTIL A NICKEL COATING OF DESIRED THICKNESS IS DEPOSITED THEREON.
Claim 2
Independent Claim
105 words
A METHOD OF DEPOSITIONG NICKEL FROM CHEMICAL REDUCTION PLATING BATH, SAID METHOD COMPRISING IMMERSING A CATALYTIC ARTICLE TO BE COATED IN A SOLUTION OF NICKEL ION AND A HYPOPHOSPHITE REDUCING AGENT CAPABLE OF REDUCING THE NICKEL SOLUTION, SAID SOLUTION HAVING A NICKEL ION CONCENTRATION OF ABOUT 15 GRAMS PER LITER, A HYPOPHOSPHITE ION CONCENTRATION OF ABOUT 15 GRAMS PER LITER, A RELATIVELY HIGH PLATING TEMPERATURE THAT IS DISPOSED NEAR THE BOILING POINT THEREOF, AND AN INITIAL PH WITHIN THE RANGE FROM ABOUT 5. 5 TO 9.1, AND ALLOWING SAID ARTICLE TO REMAIN IN SAID SOLUTION UNTIL A NICKEL COATING OF DESIRED THICKNESS IS DEPOSITED THEREON.
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) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |