US2852355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrocarbon compositions containing the water-insoluble nitric acid oxidation product of hydrocarbons
Assignee: Gulf Research and Development Co
•
Filing: 1956-06-11
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Granted: 1958-09-16
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Expires: 1976-06-11
Abstract
No abstract record available.
Inventors
- 👤 Peter B Kelly
- 👤 Morton B Blinn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:02
CPC Classifications
C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/23; C10L1/231; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A HYDROCARBON COMPOSITION COMPRISING A MAJOR AMOUNT OF A LIQUID HYDROCARBON NORMALLY TENDING TO RUST FERROUS METALS WHEN CONTAMINATED WITH WATER AND A SMALL AMOUNT, SUFFICIENT TO SUBSTANTIALLY RETARD SUCH RUSTING, OF THE WATER-INSOLUBLE NITROGEN-CONTAINING REACTION PRODUCT OBTAINED BY OXIDIZING AT ABOUT 100* TO ABOUT 400*C. ONE PART BY WEIGHT OF A SATURATED ALIPHATIC HYDROCARBON BOILING ABOVE ABOUT 250*F. AND HAVING AT LEAST 8 CARBON ATOMS IN THE PRESENCE OF ABOUT 2.5 TO ABOUT 20 PARTS BY WEIGHT OF NITRIC ACID HAVING A CONCENTRATION OF AT LEAST ABOUT 50 PERCENT.
Claim 2
Dependent Claim
90 words
A HYDROCARBON COMPOSITION COMPRISING A MAJOR AMOUNT OF A LIQUID HYDROCARBON NORMALLY TENDING TO RUST FERROUS METALS WHEN CONTAMINATED WITH WATER AND A SMALL AMOUNT, SUFFICIENT TO SUBSTANTIALLY RETARD SUCH RUSTING, OF THE WATER-INSOLUBLE NITROGEN-CONTAINING REACTION PRODUCT OBTAINED BY OXIDIZING AT ABOUT 100* TO ABOUT 400*C. ONE PART BY WEIGHT OF A SATURATED ALIPHATIC HYDROCARBON BOILING ABOVE ABOUT 250*F. AND HAVING AT LEAST 8 CARBON ATOMS IN THE PRESENCE OF ABOUT 2.5 TO ABOUT 20 PARTS BY WEIGHT OF NITRIC ACID HAVING A CONCENTRATION OF AT LEAST ABOUT 50 PERCENT.
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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) | 1961-09-15 | 1962-03-17 | 1962-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-15 | 1966-03-17 | 1966-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-15 | 1970-03-17 | 1970-09-16 | $7700.00 | Window Closed / Lapsed |