Patent US3158500A successfully refreshed from Google Patents.
US3158500A
Expired / Lapsed
US
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Process for electroless deposition
Assignee: Honeywell Inc
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Filing: 1962-02-12
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Granted: 1964-11-24
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Expires: 1982-02-12
Abstract
No abstract record available.
Inventors
- 👤 Jerome S Sallo
- 👤 James J Swenson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:01
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/48; C23C18/50; C23C18/31; C23C18/32; C23C18/34; C23C18/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A IMPROVED PROCESS OF THE ELECTROLESS PLATING OF NICKEL FROM A TRANSPORT CONTROLLED SYSTEM COMPRISING THE STEPS OF: PROVIDING AN AQUEOUS SOLUTION MAINTAINED AT A PH VALUE IN THE RANGE OF ABOUT 3 TO ABOUT 7, SAID SOLUTION BEING COMPOSED ESSENTIALLY OF A SOLUBLE NICKEL SALT AND A SOLUBLE HYPOPHOSPHITE SALT; IMMERSING A SUITABLE SUBSTRATE MATERIAL IN SAID SOLUTION; MAINTAINING SAID SOLUTION WITHIN A TEMPERATURE RANGE FROM ABOUT 70*C. TO ABOUT 90*C.; DECREASING THE PRESSURE ON SAID SOLUTION TO A VALUE BELOW THE AMBIENT ATMOSPHERIC PRESSURE AND ABOVE THE VAPOR PRESSURE OF SAID SOLUTION; AND PLATING SAID SUBSTRATE MATERIAL BY AUTO-CATALYTIC REACTION OF SAID NICKEL SALT AND SAID HYPOPHOSPHITE SALT.
Claim 2
Dependent Claim
110 words
A IMPROVED PROCESS OF THE ELECTROLESS PLATING OF NICKEL FROM A TRANSPORT CONTROLLED SYSTEM COMPRISING THE STEPS OF: PROVIDING AN AQUEOUS SOLUTION MAINTAINED AT A PH VALUE IN THE RANGE OF ABOUT 3 TO ABOUT 7, SAID SOLUTION BEING COMPOSED ESSENTIALLY OF A SOLUBLE NICKEL SALT AND A SOLUBLE HYPOPHOSPHITE SALT; IMMERSING A SUITABLE SUBSTRATE MATERIAL IN SAID SOLUTION; MAINTAINING SAID SOLUTION WITHIN A TEMPERATURE RANGE FROM ABOUT 70*C. TO ABOUT 90*C.; DECREASING THE PRESSURE ON SAID SOLUTION TO A VALUE BELOW THE AMBIENT ATMOSPHERIC PRESSURE AND ABOVE THE VAPOR PRESSURE OF SAID SOLUTION; AND PLATING SAID SUBSTRATE MATERIAL BY AUTO-CATALYTIC REACTION OF SAID NICKEL SALT AND SAID HYPOPHOSPHITE SALT.
References Cited (Backward Citations)
US2465747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |