US2499822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Production of diphenyl sulfoxide
Assignee: Honeywell International Inc
•
Filing: 1947-02-20
•
Granted: 1950-03-07
•
Expires: 1967-02-20
Abstract
No abstract record available.
Inventors
- 👤 Everett E Gilbert
- 👤 Howard D Segool
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:29
CPC Classifications
C; C07; C07C; C07C317/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
A PROCESS FOR THE MANUFACTURE OF DIPHENYL SULFOXIDE WHICH COMPRISES CONTACTING DIPHENYL SULFIDE WITH GASEOUS CHLORINE IN THE PRESENCE OF NOT LESS THAN 1 MOL OF WATER, PER MOL OF SULFIDE, AT A TEMPERATURE BETWEEN ABOUT 0* AND ABOUT 100* C. ONLY UNTIL ABOUT 1 MOL OF CHOLRINE, PER MOL OF SULFIDE, HAS REACTED.
Claim 2
Dependent Claim
54 words
A PROCESS FOR THE MANUFACTURE OF DIPHENYL SULFOXIDE WHICH COMPRISES CONTACTING DIPHENYL SULFIDE WITH GASEOUS CHLORINE IN THE PRESENCE OF NOT LESS THAN 1 MOL OF WATER, PER MOL OF SULFIDE, AT A TEMPERATURE BETWEEN ABOUT 0* AND ABOUT 100* C. ONLY UNTIL ABOUT 1 MOL OF CHOLRINE, PER MOL OF SULFIDE, HAS REACTED.
References Cited (Backward Citations)
US2385899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |