US2998359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for preparing anodes for cathodic protection systems
Assignee: Engelhard Industries Inc
•
Filing: 1958-11-25
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Granted: 1961-08-29
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Expires: 1978-11-25
Abstract
No abstract record available.
Inventors
- 👤 Edward P Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:28
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/12; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/08; C23C4/12; C23C4/129; C23C4/18; C25; C25D; C25D11/00; C25D11/02; C25D11/022; C25D11/36; C25D5/00; C25D5/48; C23F2213/00; C23F2213/30; C23F2213/31; Y; Y10; Y10S; Y10S205/00; Y10S205/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A METHOD FOR THE PREPARATION OF ANODES FOR CATHODIC PROTECTION SYSTEMS COMPRISING THE STEPS OF FLASH ELECTROPLATING A BASE OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND TANTALUM WITH PLATINUM, ROUGHENING THE PLATED SURFACE OF THE BASE, SPRAYING THE BASE WITH ADDITIONAL PLATINUM TO FORM A DISCONTINUOUS COATING, BURNISHING THE SPRAYED SURFACE TO FORM AN ELECTRODE, IMMERSING THE ELECTRODE IN AN ELECTROLYTE, AND APPLYING A VOLTAGE BETWEEN THE ELECTRODE CONNECTED AS AN ANODE AND THE ELECTROLYTE WHEREBY AN OXIDE LAYER IS FORMED ON THOSE PORTIONS OF THE BASE NOT COMPLETELY COATED BY PLATINUM.
Claim 2
Independent Claim
96 words
A METHOD FOR THE PREPARATION OF ANODES FOR CATHODIC PROTECTION SYSTEMS COMPRISING THE STEPS OF FLASH ELECTROPLATING A BASE OF A MATERIAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM AND TANTALUM WITH PLATINUM, ROUGHENING THE PLATED SURFACE OF THE BASE, SPRAYING THE BASE WITH ADDITIONAL PLATINUM TO FORM A DISCONTINUOUS COATING, BURNISHING THE SPRAYED SURFACE TO FORM AN ELECTRODE, IMMERSING THE ELECTRODE IN AN ELECTROLYTE, AND APPLYING A VOLTAGE BETWEEN THE ELECTRODE CONNECTED AS AN ANODE AND THE ELECTROLYTE WHEREBY AN OXIDE LAYER IS FORMED ON THOSE PORTIONS OF THE BASE NOT COMPLETELY COATED BY PLATINUM.
References Cited (Backward Citations)
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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) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |