Patent US1973752A successfully refreshed from Google Patents.
Patent US2986512A successfully refreshed from Google Patents.
US2986512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control system and method
Assignee: Individual
•
Filing: 1958-12-01
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Granted: 1961-05-30
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Expires: 1978-12-01
Abstract
No abstract record available.
Inventors
- 👤 Rolland C Sabins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 03:17
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
99 words
IN A CONTROL SYSTEM FOR CATHODICALLY PROTECTING A STRUCTURE IMMERSED IN AN ELECTROLYTE, AN ANODE IMMERSED IN THE ELECTROLYTE; MEANS CONNECTED TO SAID ANODE AND SAID STRUCTURE AND OPERATIVE TO IMPRESS A CURRENT FLOW BETWEEN SAID ANODE AND THE STRUCTURE TO RAISE THE POTENTIAL OF SAID STRUCTURE AND CAUSE IT TO SERVE AS A CATHODE; AND A MONITORING CIRCUIT CONNECTED TO SAID STRUCTURE AND INCLUDING A REFERENCE ELECTRODE IMMERSED IN THE ELECTROLYTE, A SECOND ELECTRODE IMMERSED IN THE ELECTROLYTE, A SOURCE OF DIRECT CURRENT CONNECTED WITH THE LAST TWO MENTIONED ELECTRODES FOR MAINTAINING SAID REFERENCE ELECTRODE AT AN ADJUSTED
Claim 2
Dependent Claim
99 words
IN A CONTROL SYSTEM FOR CATHODICALLY PROTECTING A STRUCTURE IMMERSED IN AN ELECTROLYTE, AN ANODE IMMERSED IN THE ELECTROLYTE; MEANS CONNECTED TO SAID ANODE AND SAID STRUCTURE AND OPERATIVE TO IMPRESS A CURRENT FLOW BETWEEN SAID ANODE AND THE STRUCTURE TO RAISE THE POTENTIAL OF SAID STRUCTURE AND CAUSE IT TO SERVE AS A CATHODE; AND A MONITORING CIRCUIT CONNECTED TO SAID STRUCTURE AND INCLUDING A REFERENCE ELECTRODE IMMERSED IN THE ELECTROLYTE, A SECOND ELECTRODE IMMERSED IN THE ELECTROLYTE, A SOURCE OF DIRECT CURRENT CONNECTED WITH THE LAST TWO MENTIONED ELECTRODES FOR MAINTAINING SAID REFERENCE ELECTRODE AT AN ADJUSTED
References Cited (Backward Citations)
US2759887A
Cited
US2903405A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-05-29 | 1964-11-28 | 1965-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-29 | 1968-11-28 | 1969-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-29 | 1972-11-28 | 1973-05-30 | $7700.00 | Window Closed / Lapsed |