Patent US1156074A successfully refreshed from Google Patents.
Patent US3293157A successfully refreshed from Google Patents.
US3293157A
Expired / Lapsed
US
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Process for electrolytic silvering
Assignee: MINISTERUL INVATAMINTULUI
•
Filing: 1963-04-22
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Granted: 1966-12-20
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Expires: 1983-04-22
Abstract
No abstract record available.
Inventors
- 👤 George I Facsko
- 👤 Radoi Ioan
- 👤 Minges Roland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:05
CPC Classifications
C; C25; C25D; C25D3/00; C25D3/02; C25D3/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
METHOD OF SILVER PLATING, WHICH COMPRISES PASSING AN ELECTRIC CURRENT FROM AN ANODE THROUGH AN AQUEOUS ALKALINE SOLUTION OF A SOLUBLE SILVER SALT TO A BODY TO BE PLATED WHICH SERVES AS THE CATHODE, SAID SOLUTION CONTAINING 4-SULFONAMIDOBENZOIC ACID AND SILVER IONS IN A RATIO OF AT LEAST 1:1.
Claim 2
Dependent Claim
49 words
METHOD OF SILVER PLATING, WHICH COMPRISES PASSING AN ELECTRIC CURRENT FROM AN ANODE THROUGH AN AQUEOUS ALKALINE SOLUTION OF A SOLUBLE SILVER SALT TO A BODY TO BE PLATED WHICH SERVES AS THE CATHODE, SAID SOLUTION CONTAINING 4-SULFONAMIDOBENZOIC ACID AND SILVER IONS IN A RATIO OF AT LEAST 1:1.
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) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |