US2769762A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of naphthas of improved characteristics by treating with bauxite
Assignee: Pure Oil Co
•
Filing: 1953-08-31
•
Granted: 1956-11-06
•
Expires: 1973-08-31
Abstract
No abstract record available.
Inventors
- 👤 Annable Weldon Grant
- 👤 Le Roi E Hutchings
- 👤 Lucas Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:45
CPC Classifications
C; C10; C10G; C10G25/00; C10G29/00; C10G29/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
THE PROCESS FOR PRODUCING NON-CORROSIVE SPECIAL SOLVENT NATHTHAS FROM PETROLEUM HYDROCARBON MIXTURES CONTAINING CORROSIVE SULFUR COMPOUNDS WHICH COMPRISES SUBJECTING SAID HYDROCARBONS TO CONTACT WITH BAUXITE AT A TEMPERATURE OF 600* AND 800* F., TERMINATING SAID CONTACT BEFORE HYDROGEN SULFIDE APPEARS IN THE EFFLUENT THEREFROM, AND FRACTIONATING THE PRODUCTS TO PRODUCT SPECIAL SOLVENT NAPHTHAS CHARACTERIZED BY THEIR ABILITY TO PASS THE DISTILLATION-CORROSION TEST.
Claim 2
Dependent Claim
62 words
THE PROCESS FOR PRODUCING NON-CORROSIVE SPECIAL SOLVENT NATHTHAS FROM PETROLEUM HYDROCARBON MIXTURES CONTAINING CORROSIVE SULFUR COMPOUNDS WHICH COMPRISES SUBJECTING SAID HYDROCARBONS TO CONTACT WITH BAUXITE AT A TEMPERATURE OF 600* AND 800* F., TERMINATING SAID CONTACT BEFORE HYDROGEN SULFIDE APPEARS IN THE EFFLUENT THEREFROM, AND FRACTIONATING THE PRODUCTS TO PRODUCT SPECIAL SOLVENT NAPHTHAS CHARACTERIZED BY THEIR ABILITY TO PASS THE DISTILLATION-CORROSION TEST.
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) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |