US2903405A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion prevention system
Assignee: Sabins Dohrmann Inc
•
Filing: 1956-05-24
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Granted: 1959-09-08
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Expires: 1976-05-24
Abstract
No abstract record available.
Inventors
- 👤 Rolland C Sabins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:07
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/04; C23F13/06; C23F13/08; C23F13/22; C23F2213/00; C23F2213/20; C23F2213/21; C23F2213/30; C23F2213/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
IN AN ELECTROLYTIC SYSTEM OF THE TYPE WHICH INCLUDES AN ELECTROLYTE, AND ELECTRODE ADAPTED TO BE IMMERSED IN THE ELECTROLYTE, A CATHODE AND AN ONODE ADAPTED TO BE IMMERSED IN THE ELECTROLYTE, SAID FIRST NAMED ELECTRODE BEING FORMED OF A MATERIAL HIGHER IN THE ELECTROCHEMICAL SERIES THAN THE CATHODE, MEANS INCLUDING A SOURCE OF D.-C. CURRENT CONNECTED BETWEEN THE ANODE AND SAID FIRST NAMED ELECTRODE TO IMPRESS A CURRENT FLOW BETWEEN THE SAME TO THEREBY MAINTAIN THE POLAIZATION LEVEL OF THE FIRST NAMED ELECTRODE AT A PREDETERMINED LEVEL TO PREVENT DISSOLUTION OF THE FIRST NAMED ELECTRODE, AND MEANS CONNECTING SAID FIRST NAMED ELECTRODE TO SAID CATHODE TO PERMIT CURRENT FLOW BETWEEN THE FIRST NAMED ELECTRODE AND THE CATHODE AT A PREDETERMINED POLARIZATION LEVEL TO PREVENT DISSOLUTION OF THE CATHODE, THE POLARIZATION LEVEL ON THE FIRST NAMED ELECTRODE BEING HIGHER THAN THAT ON THE CATHODE.
Claim 2
Dependent Claim
144 words
IN AN ELECTROLYTIC SYSTEM OF THE TYPE WHICH INCLUDES AN ELECTROLYTE, AND ELECTRODE ADAPTED TO BE IMMERSED IN THE ELECTROLYTE, A CATHODE AND AN ONODE ADAPTED TO BE IMMERSED IN THE ELECTROLYTE, SAID FIRST NAMED ELECTRODE BEING FORMED OF A MATERIAL HIGHER IN THE ELECTROCHEMICAL SERIES THAN THE CATHODE, MEANS INCLUDING A SOURCE OF D.-C. CURRENT CONNECTED BETWEEN THE ANODE AND SAID FIRST NAMED ELECTRODE TO IMPRESS A CURRENT FLOW BETWEEN THE SAME TO THEREBY MAINTAIN THE POLAIZATION LEVEL OF THE FIRST NAMED ELECTRODE AT A PREDETERMINED LEVEL TO PREVENT DISSOLUTION OF THE FIRST NAMED ELECTRODE, AND MEANS CONNECTING SAID FIRST NAMED ELECTRODE TO SAID CATHODE TO PERMIT CURRENT FLOW BETWEEN THE FIRST NAMED ELECTRODE AND THE CATHODE AT A PREDETERMINED POLARIZATION LEVEL TO PREVENT DISSOLUTION OF THE CATHODE, THE POLARIZATION LEVEL ON THE FIRST NAMED ELECTRODE BEING HIGHER THAN THAT ON THE CATHODE.
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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) | 1962-09-07 | 1963-03-09 | 1963-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-07 | 1967-03-09 | 1967-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-07 | 1971-03-09 | 1971-09-08 | $7700.00 | Window Closed / Lapsed |