Patent US2846472A successfully refreshed from Google Patents.
US2846472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making organic sulfonyl fluorides
Assignee: 3M Co
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Filing: 1956-06-29
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Granted: 1958-08-05
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Expires: 1976-06-29
Abstract
No abstract record available.
Inventors
- 👤 Tiers George Van Dyke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:39
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/02; C07C303/04; C07C303/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
A PROCESS FOR MAKING CHLORO-SUBSTITUTED ORGANIC SULFONYL FLUORIDES WHICH COMPRISES REACTING WITH ONE ANOTHER IN THE PRESENCE OF A FREE-RADICAL-INITIATOR, SULFURYL CHLOROFLUORIDE AND AN OLEFINIC COMPOUND COPOLYMERIZABLE WITH SULFUR DIOXIDE AND RECOVERING A CHLORO-SUBSTITUTED ORGANIC SULFONYL FLUORIDE PRODUCT.
Claim 2
Dependent Claim
38 words
A PROCESS FOR MAKING CHLORO-SUBSTITUTED ORGANIC SULFONYL FLUORIDES WHICH COMPRISES REACTING WITH ONE ANOTHER IN THE PRESENCE OF A FREE-RADICAL-INITIATOR, SULFURYL CHLOROFLUORIDE AND AN OLEFINIC COMPOUND COPOLYMERIZABLE WITH SULFUR DIOXIDE AND RECOVERING A CHLORO-SUBSTITUTED ORGANIC SULFONYL FLUORIDE PRODUCT.
References Cited (Backward Citations)
US2276097A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |