US2853442A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and means of electrolytic plating
Assignee: Pfaudler Permutit Inc
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Filing: 1955-11-18
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Granted: 1958-09-23
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Expires: 1975-11-18
Abstract
No abstract record available.
Inventors
- 👤 Walter F Swanton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:28
CPC Classifications
C; C25; C25D; C25D21/00; C25D21/02; C25D21/12; C25D5/00; C25D5/003
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
IN AN ELECTROLYTIC PROCESS WHEREIN HEAT IS GENERATED DURING THE ELECTROLYTIC ACTION OCCURING IN AN ELECTROLYTIC BATH AND SAID BATH IS DILUTED BY A STREAM OF MAKE-UP WATER, THE METHOD OF CONTROLLING THE TEMPERATURE OF THE BATH AND CONCENTRATING THE ELECTROLYTE WHICH COMPRISES THE DRAWING OF ELECTROLYTE FROM THE BATH, MAINTAINING SAID WITHDRAWN ELECTROLYTE UNDER SUB-ATMOSPHERIC PRESSURE FOR EVAPORATING A PORTION OF THE SAME FOR CONCENTRATING AND COOLING THE REMAINDER, RETURNING SAID COOLED AND CONCENTRATED ELECTROLYTE TO SAID BATH, AND REGULATING THE QUANTITY OF ELECTROLYTE WITHDRAWN FROM SAID BATH AND RETURNED THERETO IN ACCORDANCE WITH THE TEMPERATURE OF THE ELECTROLYTE IN ORDER TO MAINTAIN THE TEMPERATURE OF SAID BATH WITHIN PREDETERMINED LIMITS.
Claim 2
Dependent Claim
112 words
IN AN ELECTROLYTIC PROCESS WHEREIN HEAT IS GENERATED DURING THE ELECTROLYTIC ACTION OCCURING IN AN ELECTROLYTIC BATH AND SAID BATH IS DILUTED BY A STREAM OF MAKE-UP WATER, THE METHOD OF CONTROLLING THE TEMPERATURE OF THE BATH AND CONCENTRATING THE ELECTROLYTE WHICH COMPRISES THE DRAWING OF ELECTROLYTE FROM THE BATH, MAINTAINING SAID WITHDRAWN ELECTROLYTE UNDER SUB-ATMOSPHERIC PRESSURE FOR EVAPORATING A PORTION OF THE SAME FOR CONCENTRATING AND COOLING THE REMAINDER, RETURNING SAID COOLED AND CONCENTRATED ELECTROLYTE TO SAID BATH, AND REGULATING THE QUANTITY OF ELECTROLYTE WITHDRAWN FROM SAID BATH AND RETURNED THERETO IN ACCORDANCE WITH THE TEMPERATURE OF THE ELECTROLYTE IN ORDER TO MAINTAIN THE TEMPERATURE OF SAID BATH WITHIN PREDETERMINED LIMITS.
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) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |