US2888642A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for determining the pitting rate of a corrosive medium on a metal
Assignee: Pure Oil Co
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Filing: 1957-05-09
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Granted: 1959-05-26
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Expires: 1977-05-09
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Marsh
- 👤 Schaschl Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:22
CPC Classifications
G; G01; G01N; G01N17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
AN APPARATUS FOR MEASURING THE PITTING OF A CORROSIVE SOLUTION ON A METAL, WHICH INCLUDES IN COMBINATION, A CONTAINER FOR A CORROSIVE SOLUTION AND HAVING AT LEAST ONE WALL FORMED OF A SHEET OF THE METAL TO BE TESTED, AN ELECTRIC TIMER ARRANGED TO BE STARTED ON FILLING SAID CONTAINER WITH CORROSIVE LIQUID, AND MEANS POSITIONED ADJACENT SAID METAL WALL OF SAID CONTAINER AND RESPONSIVE TO LEAKAGE OF CORROSIVE LIQUID THEREFROM TO STOP SAID TIMER TO INDICATE THE TIME REQUIRED FOR SAID CORROSIVE LIQUID TO PIT THROUGH SAID METAL WALL.
Claim 2
Independent Claim
90 words
AN APPARATUS FOR MEASURING THE PITTING OF A CORROSIVE SOLUTION ON A METAL, WHICH INCLUDES IN COMBINATION, A CONTAINER FOR A CORROSIVE SOLUTION AND HAVING AT LEAST ONE WALL FORMED OF A SHEET OF THE METAL TO BE TESTED, AN ELECTRIC TIMER ARRANGED TO BE STARTED ON FILLING SAID CONTAINER WITH CORROSIVE LIQUID, AND MEANS POSITIONED ADJACENT SAID METAL WALL OF SAID CONTAINER AND RESPONSIVE TO LEAKAGE OF CORROSIVE LIQUID THEREFROM TO STOP SAID TIMER TO INDICATE THE TIME REQUIRED FOR SAID CORROSIVE LIQUID TO PIT THROUGH SAID METAL WALL.
References Cited (Backward Citations)
US2174053A
Cited
US2279121A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-25 | 1962-11-24 | 1963-05-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-25 | 1966-11-24 | 1967-05-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-25 | 1970-11-24 | 1971-05-26 | $7700.00 | Window Closed / Lapsed |