Patent US2739872A successfully refreshed from Google Patents.
US2739872A
Expired / Lapsed
US
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Composition and sheet material for inhibition of corrosion of metals
Assignee: Daubert Chemical Co Inc
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Filing: 1950-09-15
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Granted: 1956-03-27
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Expires: 1970-09-15
Abstract
No abstract record available.
Inventors
- 👤 Senkus Murray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:18
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/277; Y10T428/31504; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A VAPOR PHASE INHIBITING COMPOSITION FOR INHIBITING CORROSIVE ATTACK ON METAL BY ELEMENTS NORMALLY EXISTING IN THE ATMOSPHERE COMPRISING AS ESSENTIAL INGREDIENTS, AN ORGANIC AMIDE, AN INORGANIC METAL NITRITE, AND AN ALCOHOL HAVING A DEGREE OF VOLATILITY NOT GREATER THAN THAT OF ISOPROPYL ALCOHOL, SAID ALCOHOL CONTAINING NOT MORE THAN 18 CARBON ATOMS, SAID INGREDIENTS BEING PRESENT IN THE RATIO OF ABOUT 1 PART BY WEIGHT OF SAID NITRITE TO 0.05-20 PARTS BY WEIGHT EACH OF SAID AMIDE AND SAID ALCOHOL.
Claim 2
Dependent Claim
81 words
A VAPOR PHASE INHIBITING COMPOSITION FOR INHIBITING CORROSIVE ATTACK ON METAL BY ELEMENTS NORMALLY EXISTING IN THE ATMOSPHERE COMPRISING AS ESSENTIAL INGREDIENTS, AN ORGANIC AMIDE, AN INORGANIC METAL NITRITE, AND AN ALCOHOL HAVING A DEGREE OF VOLATILITY NOT GREATER THAN THAT OF ISOPROPYL ALCOHOL, SAID ALCOHOL CONTAINING NOT MORE THAN 18 CARBON ATOMS, SAID INGREDIENTS BEING PRESENT IN THE RATIO OF ABOUT 1 PART BY WEIGHT OF SAID NITRITE TO 0.05-20 PARTS BY WEIGHT EACH OF SAID AMIDE AND SAID ALCOHOL.
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) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |