US2969295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemical gold plating
Assignee: Pacific Semiconductors Inc
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Filing: 1958-05-05
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Granted: 1961-01-24
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Expires: 1978-05-05
Abstract
No abstract record available.
Inventors
- 👤 Joan M Crishal
- 👤 Maulio B Melillo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:10
CPC Classifications
C; C23; C23C; C23C18/00; C23C18/16; C23C18/31; C23C18/42; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/927; Y10S428/9335; Y10S428/934; Y10S428/936; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12861; Y10T428/12889
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
A METHOD OF GOLD PLATING THE SURFACE OF A METALLIC BODY WHICH COMPRISES IMMERSING THE METALLIC BODY IN A SOLUTION HAVING A PH VALUE IN THE RANGE FROM 8 TO 10, SAID SOLUTION CONTAINING POTASSIUM GOLD CYANIDE HAVING A GOLD CONTENT OF AT LEAST 67 1/2% AND A SOLUBLE ALKALI METAL SALT SELECTED FROM THE GROUP CONSISTING ESSENTIALLY OF CARBONATES AND BICARBONATES.
Claim 2
Independent Claim
62 words
A METHOD OF GOLD PLATING THE SURFACE OF A METALLIC BODY WHICH COMPRISES IMMERSING THE METALLIC BODY IN A SOLUTION HAVING A PH VALUE IN THE RANGE FROM 8 TO 10, SAID SOLUTION CONTAINING POTASSIUM GOLD CYANIDE HAVING A GOLD CONTENT OF AT LEAST 67 1/2% AND A SOLUBLE ALKALI METAL SALT SELECTED FROM THE GROUP CONSISTING ESSENTIALLY OF CARBONATES AND BICARBONATES.
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) | 1964-01-24 | 1964-07-25 | 1965-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-24 | 1968-07-25 | 1969-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-24 | 1972-07-25 | 1973-01-24 | $7700.00 | Window Closed / Lapsed |