US3330751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathodic protection circuit including diode means
Assignee: Lockheed Martin Corp
•
Filing: 1963-05-20
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Granted: 1967-07-11
•
Expires: 1983-05-20
Abstract
No abstract record available.
Inventors
- 👤 Stanley D Warner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:34
CPC Classifications
B; B63; B63B; B63B59/00; C; C23; C23F; C23F13/00; C23F13/02; C23F13/04; C23F13/06; C23F13/08; C23F13/20; C23F2213/00; C23F2213/30; C23F2213/31; E; E02; E02B; E02B17/00; E02B17/0017; E02B17/0026
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
IN AN ELECTROLYTIC SYSTEM FOR CATHODIC PROTECTION OF THE TYPE WHICH INCLUDES AN ELECTROLYTE, AN ELECTRODE ADAPTED TO BE IMMERSED IN THE ELECTROLYTE, A CATHODE STRUCTURE TO BE PROTECTED ADAPTED TO BE IMMERSED IN THE ELECTROLYTE, SAID ELECTRODE BEING FORMED OF A MATERIAL HIGHER IN THE ELECTROCHEMICAL SERIES THAN SAID STRUCTURE, DIODE MEANS HAVING A CONSULTANT VOLTAGE DROP CONDUCTIVELY CONNECTED BETWEEN SAID ELECTRODE AND SAID STRUCTURE, SAID SYSTEM CONSISTING SOLELY OF THE SERIES CONNECTION OF SAID ELECTRODE, SAID CONSTANT VOLTAGE DEVICE, SAID STRUCTURE AND THE ELECTROLYTE WHEREBY A SUBSTANTIALLY CONSTANT POLARIZATION POTENTIAL IS DEVELOPED BETWEEN SAID ELECTRODE AND SAID STRUCTURE.
Claim 2
Dependent Claim
100 words
IN AN ELECTROLYTIC SYSTEM FOR CATHODIC PROTECTION OF THE TYPE WHICH INCLUDES AN ELECTROLYTE, AN ELECTRODE ADAPTED TO BE IMMERSED IN THE ELECTROLYTE, A CATHODE STRUCTURE TO BE PROTECTED ADAPTED TO BE IMMERSED IN THE ELECTROLYTE, SAID ELECTRODE BEING FORMED OF A MATERIAL HIGHER IN THE ELECTROCHEMICAL SERIES THAN SAID STRUCTURE, DIODE MEANS HAVING A CONSULTANT VOLTAGE DROP CONDUCTIVELY CONNECTED BETWEEN SAID ELECTRODE AND SAID STRUCTURE, SAID SYSTEM CONSISTING SOLELY OF THE SERIES CONNECTION OF SAID ELECTRODE, SAID CONSTANT VOLTAGE DEVICE, SAID STRUCTURE AND THE ELECTROLYTE WHEREBY A SUBSTANTIALLY CONSTANT POLARIZATION POTENTIAL IS DEVELOPED BETWEEN SAID ELECTRODE AND SAID STRUCTURE.
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |