US2976123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion-measuring apparatus
Assignee: Pure Oil Co
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Filing: 1958-03-24
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Granted: 1961-03-21
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Expires: 1978-03-24
Abstract
No abstract record available.
Inventors
- 👤 Glenn A Marsh
- 👤 Schaschl Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:04
CPC Classifications
G; G01; G01N; G01N17/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A CORROSION-MEASURING TEST ELEMENT COMPRISING A MUTLI-LAYER ELONGATED PROBE HAVING AN OUTER EXPOSED LAYER ON ONE SIDE THEREOF COMPOSED OF A CORRODILE MATERIAL OF CONSTRUCTION TO BE TESTED, AN INNER CORE LAYER OF A DISSIMILAR MATERIAL OF CONSTRUCTION HAVING A DIFFERENT COEFFICIENT OF LINEAR THERMAL EXPANSION FROM THAT OF SAID OUTER EXPOSED LAYER, A CORROSION PROTECTED LAYER ON THE OTHER SIDE OF SAID PROBE COMPOSED OF SAID MATERIAL OF CONSTRUCTION TO BE TESTED, MEANS FOR PREVENTING CORROSION OF SAID PROTECTED LAYER, SAID OUTER EXPOSED LAYER AND PROTECTED LAYER HAVING SUBSTANTIALLY THE SAME THICKNESS AND COMPOSITION, AND MEANS FOR INDICATING THE MOVEMENT OF ONE END OF SAID PROBE RELATIVE TO THE OTHER.
Claim 2
Dependent Claim
111 words
A CORROSION-MEASURING TEST ELEMENT COMPRISING A MUTLI-LAYER ELONGATED PROBE HAVING AN OUTER EXPOSED LAYER ON ONE SIDE THEREOF COMPOSED OF A CORRODILE MATERIAL OF CONSTRUCTION TO BE TESTED, AN INNER CORE LAYER OF A DISSIMILAR MATERIAL OF CONSTRUCTION HAVING A DIFFERENT COEFFICIENT OF LINEAR THERMAL EXPANSION FROM THAT OF SAID OUTER EXPOSED LAYER, A CORROSION PROTECTED LAYER ON THE OTHER SIDE OF SAID PROBE COMPOSED OF SAID MATERIAL OF CONSTRUCTION TO BE TESTED, MEANS FOR PREVENTING CORROSION OF SAID PROTECTED LAYER, SAID OUTER EXPOSED LAYER AND PROTECTED LAYER HAVING SUBSTANTIALLY THE SAME THICKNESS AND COMPOSITION, AND MEANS FOR INDICATING THE MOVEMENT OF ONE END OF SAID PROBE RELATIVE TO THE OTHER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-20 | 1964-09-19 | 1965-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-20 | 1968-09-19 | 1969-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-20 | 1972-09-19 | 1973-03-21 | $7700.00 | Window Closed / Lapsed |