US2690402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Processes of chemical nickel plating of nonmetallic bodies
Assignee: General American Transportation Corp
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Filing: 1952-04-01
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Granted: 1954-09-28
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Expires: 1972-04-01
Abstract
No abstract record available.
Inventors
- 👤 William J Crehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:28
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/18; C23C18/20; C23C18/28; C23C18/30; C23C18/31; C23C18/32; C23C18/34; C23C18/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
THE PROCESS OF PRODUCING AN INTIMATELY BONDED AND CONTINUOUS LAYER OF NICKEL UPON THE SURFACE OF A SOLID NON-METALLIC BODY, WHICH COMPRISES EXPOSING A FRESH NON-POLARIZED SURFACE OF SAID BODY, THEN CONTACTING SAID BODY WITH A FIRST AQUEOUS SOLUTION OF A PALLADIUM SALT, THEN CONTACTING SAID BODY WITH A SECOND AQUEOUS SOLUTION OF A REDUCING AGENT IN ORDER TO EFFECT THE CHEMICAL REDUCTION OF SAID PALLADIUM SALT TO METALLIC PALLADIUM SO THAT DISPERSED MINUTE METALLIC PALLADIUM PARTICLES ARE SECURED TO THE FRESH NONPOLARIZED SURFACE OF SAID BODY, AND THEN CONTACTING SAID BODY WITH A BATH CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF A NICKEL SALT AND A HYPOPHOPHITE DURING A SUFFICIENT TIME INTERVAL TO CAUSE INITIAL NICKEL PLATING UPON SAID PARTICLES AND SUBSEQUENT GROWTH OF THE NICKEL PLATING INTO A CONTINUOUS NICKEL LAYER UPON THE FRESH NONPOLARIZED SURFACE OF SAID BODY.
Claim 2
Dependent Claim
141 words
THE PROCESS OF PRODUCING AN INTIMATELY BONDED AND CONTINUOUS LAYER OF NICKEL UPON THE SURFACE OF A SOLID NON-METALLIC BODY, WHICH COMPRISES EXPOSING A FRESH NON-POLARIZED SURFACE OF SAID BODY, THEN CONTACTING SAID BODY WITH A FIRST AQUEOUS SOLUTION OF A PALLADIUM SALT, THEN CONTACTING SAID BODY WITH A SECOND AQUEOUS SOLUTION OF A REDUCING AGENT IN ORDER TO EFFECT THE CHEMICAL REDUCTION OF SAID PALLADIUM SALT TO METALLIC PALLADIUM SO THAT DISPERSED MINUTE METALLIC PALLADIUM PARTICLES ARE SECURED TO THE FRESH NONPOLARIZED SURFACE OF SAID BODY, AND THEN CONTACTING SAID BODY WITH A BATH CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF A NICKEL SALT AND A HYPOPHOPHITE DURING A SUFFICIENT TIME INTERVAL TO CAUSE INITIAL NICKEL PLATING UPON SAID PARTICLES AND SUBSEQUENT GROWTH OF THE NICKEL PLATING INTO A CONTINUOUS NICKEL LAYER UPON THE FRESH NONPOLARIZED SURFACE OF SAID BODY.
References Cited (Backward Citations)
US2430581A
Cited
US2532283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-27 | 1958-03-29 | 1958-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-27 | 1962-03-29 | 1962-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-27 | 1966-03-29 | 1966-09-28 | $7700.00 | Window Closed / Lapsed |