US3267156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of dialkyl ethers
Assignee: ExxonMobil Oil Corp
•
Filing: 1961-08-07
•
Granted: 1966-08-16
•
Expires: 1981-08-07
Abstract
No abstract record available.
Inventors
- 👤 Waldemar H Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:39
CPC Classifications
C; C07; C07C; C07C41/00; C07C41/01; C07C41/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A PROCESS FOR PRODUCING ETHERS THAT COMPRISES CONTACTING A SUBSTANTIALLY ANHYDROUS ALCOHOL HAVING BETWEEN 2 AND 5 CARBON ATOMS, INCLUSIVE, WITH A SULFONATED RESIN COPOLYMER OF STYRENE AND DIVINYLBENZENE CONTAINING BETWEEN ABOUT 6 PERCENT, AND ABOUT 15 PERCENT DIVINYLBENZENE CROSS-LINKING AGENT, IN THE ABSENCE OF ADDED WATER AND OLEFIN, AT A TEMPERATURE VARYING BETWEEN ABOUT 250* F. AND ABOUT 400*F., UNDER A PRESSURE VARYING BETWEEN ABOUT 500 P.S.I.G. AND ABOUT 1500 P.S.I.G., AND AT A LIQUID HOURLY SPACE VELOCITY VARYING BETWEEN ABOUT 0.1 AND ABOUT 4.
Claim 2
Dependent Claim
86 words
A PROCESS FOR PRODUCING ETHERS THAT COMPRISES CONTACTING A SUBSTANTIALLY ANHYDROUS ALCOHOL HAVING BETWEEN 2 AND 5 CARBON ATOMS, INCLUSIVE, WITH A SULFONATED RESIN COPOLYMER OF STYRENE AND DIVINYLBENZENE CONTAINING BETWEEN ABOUT 6 PERCENT, AND ABOUT 15 PERCENT DIVINYLBENZENE CROSS-LINKING AGENT, IN THE ABSENCE OF ADDED WATER AND OLEFIN, AT A TEMPERATURE VARYING BETWEEN ABOUT 250* F. AND ABOUT 400*F., UNDER A PRESSURE VARYING BETWEEN ABOUT 500 P.S.I.G. AND ABOUT 1500 P.S.I.G., AND AT A LIQUID HOURLY SPACE VELOCITY VARYING BETWEEN ABOUT 0.1 AND ABOUT 4.
References Cited (Backward Citations)
US2746738A
Cited
US2845463A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |