US2870216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Disproportionation of organic sulfoxides
Assignee: MW Kellogg Co
•
Filing: 1956-12-12
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Granted: 1959-01-20
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Expires: 1976-12-12
Abstract
No abstract record available.
Inventors
- 👤 David P Sorensen
- 👤 Horace R Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:08
CPC Classifications
C; C07; C07B; C07B45/00; C07B45/04; C07C; C07C315/00; C07C315/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
27 words
A PROCESS WHICH COMPRISES DISPROPORTIONATING AND OXIDIZING AN ORGANIC SULFOXIDE IN THE PRESENCE OF OSMIUM TETROXIDE AND AN INORGANIC OXIDE OF NITROGEN COMPOUND TO PRODUCE A SULFONE.
Claim 2
Dependent Claim
27 words
A PROCESS WHICH COMPRISES DISPROPORTIONATING AND OXIDIZING AN ORGANIC SULFOXIDE IN THE PRESENCE OF OSMIUM TETROXIDE AND AN INORGANIC OXIDE OF NITROGEN COMPOUND TO PRODUCE A SULFONE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |