US2615786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High boiling mercaptan production
Assignee: Standard Oil Co
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Filing: 1948-08-28
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Granted: 1952-10-28
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Expires: 1968-08-28
Abstract
No abstract record available.
Inventors
- 👤 Wayne A Proell
- 👤 William F Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:30
CPC Classifications
C; C07; C07C; C07C319/00; C07C319/02; C07C319/04; C10; C10G; C10G29/00; C10G29/20; C10G29/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
THE METHOD OF MAKING MERCAPTANS HAVING ABOUT 12 TO 18 CARBON ATOMS PER MOLECULE WHICH METHOD COMPRISES INTIMATELY MIXING A LIQUID HYDROCARBON CHARGING STOCK CONTAINING SUBSTANTIAL AMOUNTS OF C12-C18 TERTIARY OLEFINS WITH A CATALYTIC AMOUNT OF LIQUID ALKANESULFONIC ACID CATALYST AND INTRODUCING H2S INTO THE LIQUID PAHSE MIXTURE AT A TEMPERATURE IN THE RANGE OF ABOUT 0* C. TO ABOUT 60* C.
Claim 2
Independent Claim
62 words
THE METHOD OF MAKING MERCAPTANS HAVING ABOUT 12 TO 18 CARBON ATOMS PER MOLECULE WHICH METHOD COMPRISES INTIMATELY MIXING A LIQUID HYDROCARBON CHARGING STOCK CONTAINING SUBSTANTIAL AMOUNTS OF C12-C18 TERTIARY OLEFINS WITH A CATALYTIC AMOUNT OF LIQUID ALKANESULFONIC ACID CATALYST AND INTRODUCING H2S INTO THE LIQUID PAHSE MIXTURE AT A TEMPERATURE IN THE RANGE OF ABOUT 0* C. TO ABOUT 60* C.
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) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |