US2711360A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor-phase corrosion inhibition with a mixture of inhibitors
Assignee: Shell Development Co
•
Filing: 1950-10-21
•
Granted: 1955-06-21
•
Expires: 1970-10-21
Abstract
No abstract record available.
Inventors
- 👤 Wachter Aaron
- 👤 Skei Thurston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:20
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31942; Y10T428/31949; Y10T428/31964; Y10T428/31967
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
96 words
A CORROSION-INHIBITING COMPOSITION OF MATTER COMPRISING A NON-AROMATIC HYDROCARBON AMMONIUM NITRATE SALT HAVING A VAPOR PRESSURE OF AT LEAST ABOUT 0.0001 MM. HG AT 21*C. AND A CARBOXYLIC ACID SALT OF AN AMINE, SAID CARBOXYLIC ACID BEING A HYDROCARBON CARBOXYLIC ACID HAVING BETWEEN ONE AND TWO CARBOXYL RADICALS, CONTAINING LESS THAN 19 CARBON ATOMS PER MOLECULE AND HAVING A DISSOCIATION CONSTANT BETWEEN ABOUT 10-3 AND ABOUT 10-8, SAID AMINE CONTAINING NOT MORE THAN ABOUT 25 CARBON ATOMS, THE WEIGHT RATIO OF SAID NITRITE SALT TO SAID CARBOXYLIC ACID SALT BEING BETWEEN ABOUT 20 AND AND 0.3.
References Cited (Backward Citations)
US2333206A
Cited
US2258578A
Cited
US2449962A
Cited
US2643178A
Cited
US2577219A
Cited
US2629649A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-20 | 1958-12-20 | 1959-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-20 | 1962-12-20 | 1963-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-20 | 1966-12-20 | 1967-06-21 | $7700.00 | Window Closed / Lapsed |