Patent US2810682A successfully refreshed from Google Patents.
US2810682A
Expired / Lapsed
US
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Process for electrolytically producing silver powder
Assignee: Ions Exchange and Chemical Corp
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Filing: 1953-06-08
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Granted: 1957-10-22
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Expires: 1973-06-08
Abstract
No abstract record available.
Inventors
- 👤 Kenneth N Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:43
CPC Classifications
C; C25; C25C; C25C5/00; C25C5/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A PROCESS FOR PRODUCING SILVER POWDER, COMPRISING THE STEPS OF IMMERSING A SILVER ANODS AND A CATHODE IN AN ELECTROLYTE CONSISTING OF HYDROFLUOROSILICIC ACID IN A CONCENTRATION BETWEEN SUBSTANTIALLY 2% AND 30%, PASSING A DIRECT CURRENT WITHIN A RANGE OF APPROXIMATELY 0.03 AND 0.5 AMP./CM.2 BETWEEN SAID ANODE AND SAID CATHODE WHEREBY A DEPOSIT OF SILVER IS FORMED ON SAID CATHODE, FORMING A POWDER BY PERIODICALLY SEPARATING SAID DEPOSIT FROM SAID CATHODE, AND RECOVERING SAID POWDER.
Claim 2
Dependent Claim
76 words
A PROCESS FOR PRODUCING SILVER POWDER, COMPRISING THE STEPS OF IMMERSING A SILVER ANODS AND A CATHODE IN AN ELECTROLYTE CONSISTING OF HYDROFLUOROSILICIC ACID IN A CONCENTRATION BETWEEN SUBSTANTIALLY 2% AND 30%, PASSING A DIRECT CURRENT WITHIN A RANGE OF APPROXIMATELY 0.03 AND 0.5 AMP./CM.2 BETWEEN SAID ANODE AND SAID CATHODE WHEREBY A DEPOSIT OF SILVER IS FORMED ON SAID CATHODE, FORMING A POWDER BY PERIODICALLY SEPARATING SAID DEPOSIT FROM SAID CATHODE, AND RECOVERING SAID POWDER.
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) | 1960-10-21 | 1961-04-22 | 1961-10-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-21 | 1965-04-22 | 1965-10-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-21 | 1969-04-22 | 1969-10-22 | $7700.00 | Window Closed / Lapsed |