US2592523A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removal of hydrogen sulfide and mercaptans from gases or liquids such as petroleum or petroleum fractions
Assignee: Pure Oil Co
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Filing: 1948-08-21
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Granted: 1952-04-15
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Expires: 1968-08-21
Abstract
No abstract record available.
Inventors
- 👤 George W Ayers
- 👤 Marcellus J Geerts
- 👤 William A Krewer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:53
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/02; B; B01; B01J; B01J41/00; B01J41/08; B01J41/12; B01J41/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE METHOD OF RECOVERING WEAKLY ACIDIC SULFUR COMPOUNDS FROM HYDROCARBONS AND HYDROCARBON FRACTIONS WHICH COMPRISES, CONTACTING THE HYDROCARBON WITH A MODIFIED RESIN WHICH IS THE REACTION PRODUCT OF A RESIN AND AN AMINE, AND HAS THE AMINE GROUPS ATTACHED TO THE RESIN MOLECULES THROUGH ALKOXY CHAINS, AND RECOVERING THE ACIDIC SULFUR COMPOUNDS FROM THE MODIFIED RESIN.
Claim 2
Independent Claim
56 words
THE METHOD OF RECOVERING WEAKLY ACIDIC SULFUR COMPOUNDS FROM HYDROCARBONS AND HYDROCARBON FRACTIONS WHICH COMPRISES, CONTACTING THE HYDROCARBON WITH A MODIFIED RESIN WHICH IS THE REACTION PRODUCT OF A RESIN AND AN AMINE, AND HAS THE AMINE GROUPS ATTACHED TO THE RESIN MOLECULES THROUGH ALKOXY CHAINS, AND RECOVERING THE ACIDIC SULFUR COMPOUNDS FROM THE MODIFIED RESIN.
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) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |