US2493038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction of methane with sulfur trioxide
Assignee: Houdry Process Corp
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Filing: 1946-05-31
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Granted: 1950-01-03
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Expires: 1966-05-31
Abstract
No abstract record available.
Inventors
- 👤 John C Snyder
- 👤 Aristid V Grosse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:19
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/02; C07C303/04; C07C303/06; C07C303/24; C07C303/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
THE PROCESS WHICH COMPRISES FORMING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF METHANE SULFONIC ACID, METHIONIC ACID, METHYL ESTERS OF SULFURIC ACID, METHANOL AND METHYL ESTERS OF SULFONIC ACIDS OF METHANE BY REACTING METHANE AND SULFUR TRIOXIDE IN THE PRESENCE OF A CATALYST SELECTED FROM THE GROUP CONSISTING OF METALS AND SULFATES OF METALS IN GROUP II-B OF THE PERIODIC TABLE.
References Cited (Backward Citations)
US2094451A
Cited
US2383752A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-02 | 1953-07-04 | 1954-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-02 | 1957-07-04 | 1958-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-02 | 1961-07-04 | 1962-01-03 | $7700.00 | Window Closed / Lapsed |