US3265526A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of chemically plating base layers with precious metals of the platinum group
Assignee: AMALGAMATED CURACAO PATENTS CO
•
Filing: 1962-07-02
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Granted: 1966-08-09
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Expires: 1982-07-02
Abstract
No abstract record available.
Inventors
- 👤 Beer Henri Bernard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 07:04
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/42; C23C18/44; C23C18/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A PROCESS FOR COATING A BASE WITH A PRECIOUS METAL SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND ALLOYS THEREOF; WHICH CONSISTS ESSENTIALLY OF THE STEPS OF APPLYING TO SAID BASE A REDUCIBLE SALT OF AT LEAST ON OF SAID PRECIOUS METALS; AND HEATING SAID BASE IN A GASEOUS MIXTURE CONSISTING ESSENTIALLY OF A GASEOUS REDUCING AGENT AND A GAS HAVING AN ALKALINE REACTION, SAID HEATING BEING AT A TEMPERATURE SUFFICIENT TO REDUCE SAID PRECIOUS METAL SALT AND FORM A FIRMLY ADHERENT COATING OF PLATINUM METAL ON SAID BASE, SAID TEMPERATURE BEING ABOVE THE TEMPERATURE AT WHICH THE SALT DECOMPOSES AND BELOW THE TEMPERATURE AT WHICH THE BASE WILL BE DAMAGED.
Claim 2
Dependent Claim
111 words
A PROCESS FOR COATING A BASE WITH A PRECIOUS METAL SELECTED FROM THE GROUP CONSISTING OF PLATINUM AND ALLOYS THEREOF; WHICH CONSISTS ESSENTIALLY OF THE STEPS OF APPLYING TO SAID BASE A REDUCIBLE SALT OF AT LEAST ON OF SAID PRECIOUS METALS; AND HEATING SAID BASE IN A GASEOUS MIXTURE CONSISTING ESSENTIALLY OF A GASEOUS REDUCING AGENT AND A GAS HAVING AN ALKALINE REACTION, SAID HEATING BEING AT A TEMPERATURE SUFFICIENT TO REDUCE SAID PRECIOUS METAL SALT AND FORM A FIRMLY ADHERENT COATING OF PLATINUM METAL ON SAID BASE, SAID TEMPERATURE BEING ABOVE THE TEMPERATURE AT WHICH THE SALT DECOMPOSES AND BELOW THE TEMPERATURE AT WHICH THE BASE WILL BE DAMAGED.
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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) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |