US2943049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Denitrogenation of hydrocarbon mixtures
Assignee: Union Oil Company of California
•
Filing: 1957-01-25
•
Granted: 1960-06-28
•
Expires: 1977-01-25
Abstract
No abstract record available.
Inventors
- 👤 Paul G Nahin
- 👤 John E Sherborne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:35
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; C10G25/03; C10G25/05; B; B01; B01J; B01J20/00; B01J20/02; B01J20/10; C10G25/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A PROCESS FOR DENITROGENATION OF HYDROCARBONS CONTAMINATED WITH NITROGEN BASES WHICH COMPRISES CONTACTING SAID HYDROCARBONS WITH A SILICEOUS SOLID HAVING BASE EXCHANGE PROPERTIES AND WHICH HAS BEEN CONVERTED TO THE HYDROGEN ION FORM, AND SEPARATING HYDROCARBON OF SUBSTANTIALLY REDUCED NITROGEN ANALYSIS THEREFROM.
Claim 2
Dependent Claim
42 words
A PROCESS FOR DENITROGENATION OF HYDROCARBONS CONTAMINATED WITH NITROGEN BASES WHICH COMPRISES CONTACTING SAID HYDROCARBONS WITH A SILICEOUS SOLID HAVING BASE EXCHANGE PROPERTIES AND WHICH HAS BEEN CONVERTED TO THE HYDROGEN ION FORM, AND SEPARATING HYDROCARBON OF SUBSTANTIALLY REDUCED NITROGEN ANALYSIS THEREFROM.
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) | 1963-06-28 | 1963-12-28 | 1964-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-28 | 1967-12-28 | 1968-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-28 | 1971-12-28 | 1972-06-28 | $7700.00 | Window Closed / Lapsed |