Patent US3042592A successfully refreshed from Google Patents.
US3042592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power supply for chromium plating
Assignee: GEN DEV CORP
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Filing: 1959-06-05
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Granted: 1962-07-03
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Expires: 1979-06-05
Abstract
No abstract record available.
Inventors
- 👤 Glenn R Schaer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:08
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/18; C25D5/34; C25D5/42; C25D5/44; C25D5/60; C25D5/615; C25D5/617; C25D5/623; C25D5/627; Y; Y10; Y10S; Y10S204/00; Y10S204/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
IN THE ART OF CHROMIUM PLATING A METAL OBJECT WHEREIN THE OBJECT IS CONSTITUTED THE CATHODE TO BE CHROMIUM PLATED IN AN ELECTROLYTIC CIRCUIT WITH AN ANODE AND PLATING SOLUTION COMPRISING AND AQUEOUS SOLUTION OF CHROMIC AND SULFURIC ACIDS ADAPTED FOR CHROMIUM PLATING, THE IMPROVEMENT WHICH COMPRISES APPLYING A THREE-PHASE, HALF WAVE RECTIVIED VOLTAGE TO SAID ANODE AND CATHODE, ONE OF SAID PHASES HAVING ITS NORMAL PHASE RELATIONSHIP REVERSED.
Claim 2
Dependent Claim
69 words
IN THE ART OF CHROMIUM PLATING A METAL OBJECT WHEREIN THE OBJECT IS CONSTITUTED THE CATHODE TO BE CHROMIUM PLATED IN AN ELECTROLYTIC CIRCUIT WITH AN ANODE AND PLATING SOLUTION COMPRISING AND AQUEOUS SOLUTION OF CHROMIC AND SULFURIC ACIDS ADAPTED FOR CHROMIUM PLATING, THE IMPROVEMENT WHICH COMPRISES APPLYING A THREE-PHASE, HALF WAVE RECTIVIED VOLTAGE TO SAID ANODE AND CATHODE, ONE OF SAID PHASES HAVING ITS NORMAL PHASE RELATIONSHIP REVERSED.
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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) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |