Patent US3022272A successfully refreshed from Google Patents.
US3098801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for measuring corrosiveness of aqueous liquids
Assignee: Pure Oil Co
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Filing: 1959-06-30
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Granted: 1963-07-23
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Expires: 1979-06-30
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Marsh
- 👤 Schaschl Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:59
CPC Classifications
G; G01; G01N; G01N17/00; G01N17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
THE METHOD OF DETERMINING THE CATHODIC-ANODIC CELL CURRENT OF THE CORROSION OF A METALLIC MATERIAL OF CONSTRUCTION IN A CORROSIVE ELECTROLYTIC ENVIRONMENT WHICH COMPRISES EXPOSING AT FIRST TEST SPECIMEN TO SAID ENVIRONMENT FOR A TIME SUFFICIENT TO FORM A LAYER OF CORROSION PRODUCTS ON THE SURFACE THEREOF, EXPOSING A SECOND TEST SPECIMEN, SAID SECOND TEST SPECIMEN HAVING AN EXPOSED AREA SUBSTANTIALLY EQUAL TO THE EXPOSED AREA OF SAID FIRST TEST SPECIMEN TO SAID ENVIRONMENT AT A KNOWN DISTANCE FROM SAID FIRST TEST SPECIMEN WHEREBY SAID FIRST TEST SPECIMENT BECOMES ANODIC WITH RESPECT TO SAID SECOND TEST SPECIMEN, MEASURING THE CELL CURRENT GENERATED BETWEEN SAID SPECIMENS, AND RECORDING SAME IN RELATION TO SAID DISTANCE, SAID SPECIMENS BEING SUBSTNATIALLY IDENTICAL TEST SPECIMENTS OF SAID METALLIC MATERIAL OF CONSTRUCTION.
Claim 2
Independent Claim
126 words
THE METHOD OF DETERMINING THE CATHODIC-ANODIC CELL CURRENT OF THE CORROSION OF A METALLIC MATERIAL OF CONSTRUCTION IN A CORROSIVE ELECTROLYTIC ENVIRONMENT WHICH COMPRISES EXPOSING AT FIRST TEST SPECIMEN TO SAID ENVIRONMENT FOR A TIME SUFFICIENT TO FORM A LAYER OF CORROSION PRODUCTS ON THE SURFACE THEREOF, EXPOSING A SECOND TEST SPECIMEN, SAID SECOND TEST SPECIMEN HAVING AN EXPOSED AREA SUBSTANTIALLY EQUAL TO THE EXPOSED AREA OF SAID FIRST TEST SPECIMEN TO SAID ENVIRONMENT AT A KNOWN DISTANCE FROM SAID FIRST TEST SPECIMEN WHEREBY SAID FIRST TEST SPECIMENT BECOMES ANODIC WITH RESPECT TO SAID SECOND TEST SPECIMEN, MEASURING THE CELL CURRENT GENERATED BETWEEN SAID SPECIMENS, AND RECORDING SAME IN RELATION TO SAID DISTANCE, SAID SPECIMENS BEING SUBSTNATIALLY IDENTICAL TEST SPECIMENTS OF SAID METALLIC MATERIAL OF CONSTRUCTION.
References Cited (Backward Citations)
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US2878354A
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US2834858A
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US2947679A
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US3025458A
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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) | 1966-07-22 | 1967-01-21 | 1967-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-07-22 | 1971-01-21 | 1971-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-07-22 | 1975-01-21 | 1975-07-23 | $7700.00 | Window Closed / Lapsed |