US2984603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Platinum plating composition and process
Assignee: Sel Rex Corp
•
Filing: 1958-08-06
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Granted: 1961-05-16
•
Expires: 1978-08-06
Abstract
No abstract record available.
Inventors
- 👤 Duva Robert
- 👤 Edwin C Rinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 06:18
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
AS AN ELECTROLYTE FOR PLATING OF PLATINUM, A SOLUTION COMPRISING WATER AND THE SOLUTION OBTAINED BY HEATING 10-40 G. OF PLATINUM DIAMINO DINITITE IN ABOUT 200 CC. OF AN AQUEOUS MIXTURE CONTAINING ABOUT 10-100 CC. OF CONCENTRATED SULFURIC ACID AND 10-100 CC. OF CONCENTRATED PHOSPHORIC ACID.
Claim 2
Dependent Claim
46 words
AS AN ELECTROLYTE FOR PLATING OF PLATINUM, A SOLUTION COMPRISING WATER AND THE SOLUTION OBTAINED BY HEATING 10-40 G. OF PLATINUM DIAMINO DINITITE IN ABOUT 200 CC. OF AN AQUEOUS MIXTURE CONTAINING ABOUT 10-100 CC. OF CONCENTRATED SULFURIC ACID AND 10-100 CC. OF CONCENTRATED PHOSPHORIC ACID.
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) | 1964-05-15 | 1964-11-14 | 1965-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-15 | 1968-11-14 | 1969-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-15 | 1972-11-14 | 1973-05-16 | $7700.00 | Window Closed / Lapsed |