Patent US2610192A successfully refreshed from Google Patents.
US2610192A
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Method for producing hydroxy sulfolenes
Assignee: Phillips Petroleum Co
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Filing: 1949-10-21
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Granted: 1952-09-09
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Expires: 1969-10-21
Abstract
No abstract record available.
Inventors
- 👤 John E Mahan
- 👤 Sig C Fauske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:45
CPC Classifications
C; C07; C07D; C07D333/00; C07D333/02; C07D333/46; C07D333/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE PROCESS WHICH COMPRISES INTERACTING A HALO-HYDROXY SULFOLANE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMMONIA, PRIMARY AMINES AND SECONDARY AMINES AND RECOVERING AT LEAST ONE OF AN HYDROXY SULFOLENE AND AN AMINO-HYDROXY SULFOLANE AS A PRODUCT OF THE REACTION.
Claim 2
Dependent Claim
42 words
THE PROCESS WHICH COMPRISES INTERACTING A HALO-HYDROXY SULFOLANE WITH A COMPOUND SELECTED FROM THE GROUP CONSISTING OF AMMONIA, PRIMARY AMINES AND SECONDARY AMINES AND RECOVERING AT LEAST ONE OF AN HYDROXY SULFOLENE AND AN AMINO-HYDROXY SULFOLANE AS A PRODUCT OF THE REACTION.
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) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |