Patent US3314874A successfully refreshed from Google Patents.
US3314874A
Expired / Lapsed
US
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Apparatus for determining cathodic protection
Assignee: Reynolds Metals Co
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Filing: 1963-03-21
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Granted: 1967-04-18
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Expires: 1983-03-21
Abstract
No abstract record available.
Inventors
- 👤 Rowland W Flournoy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:53
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
A SELF-CONTAINED AND PORTABLE APPARATUS FOR DETERMINING WHETHER PROPER CATHODIC PROTECTION WILL BE PROVIDED FOR PARTICULAR PIPE LINES WHEN UTILIZED WITH A PARTICULAR SACRIFICIAL ANODE AND A PARTICULAR ENVIRONMENTAL ELECTROLYTE COMPRISING A SAMPLE OF SAID PIPE LINE, A SAMPLE OF SAID ANODE, AN INSULATING MEMBER INTERCONNECTING SAID SAMPLES TOGETHER SO THAT SAID SAMPLES CAN BE SIMULTANEOUSLY IMERSED IN SAID ELECTROLYTE, A CONDUCTOR MEANS CONNECTING SAID SAMPLES TOGETHER AND BEING ADAPTED TO HAVE A CURRENT FLOW THERETHROUGH WHEN SAID SAMPLE ARE IMMERSED IN SAID ELECTROLYTE, AND CIRCUIT MEANS CONNECTED TO SAID CONDUCTOR MEANS, SAID CIRCUIT MEANS BEING ADAPTED TO PROVIDE AND AMPLIFIED CURRENT FLOW PROPORTIONAL TO SAID
Claim 2
Dependent Claim
106 words
A SELF-CONTAINED AND PORTABLE APPARATUS FOR DETERMINING WHETHER PROPER CATHODIC PROTECTION WILL BE PROVIDED FOR PARTICULAR PIPE LINES WHEN UTILIZED WITH A PARTICULAR SACRIFICIAL ANODE AND A PARTICULAR ENVIRONMENTAL ELECTROLYTE COMPRISING A SAMPLE OF SAID PIPE LINE, A SAMPLE OF SAID ANODE, AN INSULATING MEMBER INTERCONNECTING SAID SAMPLES TOGETHER SO THAT SAID SAMPLES CAN BE SIMULTANEOUSLY IMERSED IN SAID ELECTROLYTE, A CONDUCTOR MEANS CONNECTING SAID SAMPLES TOGETHER AND BEING ADAPTED TO HAVE A CURRENT FLOW THERETHROUGH WHEN SAID SAMPLE ARE IMMERSED IN SAID ELECTROLYTE, AND CIRCUIT MEANS CONNECTED TO SAID CONDUCTOR MEANS, SAID CIRCUIT MEANS BEING ADAPTED TO PROVIDE AND AMPLIFIED CURRENT FLOW PROPORTIONAL TO SAID
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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) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |