Patent US4722987A successfully refreshed from Google Patents.
US3299014A
Expired / Lapsed
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Process for chlorosulfonating olefinic hydrocarbon polymers using sulfuryl chloride
Assignee: EIDP Inc
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Filing: 1964-08-19
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Granted: 1967-01-17
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Expires: 1984-08-19
Abstract
No abstract record available.
Inventors
- 👤 Kalil James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 01:07
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/34; C08F8/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
IN A PROCESS FOR TREATING A POLYMER OF A MONOOLEFINIC HYDROCARBON WITH SULFURYL CHLORIDE WHICH COMPRISES: (1) REACTING AN ORGANIC SOLVENT SOLUTION OF SAID POLYMER WITH SULFURYL CHLORIDE, THEREBY FORMING AN OFF-GAS FROM THE REACTION CONTAINING SULFUR DIOXIDE AND HYDROGEN CHLORIDE, THE IMPROVEMENT WHICH CONSISTS IN (2) MIXING SAID OFF-GAS WITH CHLORINE AND EXOTHER-
Claim 2
Dependent Claim
54 words
IN A PROCESS FOR TREATING A POLYMER OF A MONOOLEFINIC HYDROCARBON WITH SULFURYL CHLORIDE WHICH COMPRISES: (1) REACTING AN ORGANIC SOLVENT SOLUTION OF SAID POLYMER WITH SULFURYL CHLORIDE, THEREBY FORMING AN OFF-GAS FROM THE REACTION CONTAINING SULFUR DIOXIDE AND HYDROGEN CHLORIDE, THE IMPROVEMENT WHICH CONSISTS IN (2) MIXING SAID OFF-GAS WITH CHLORINE AND EXOTHER-
References Cited (Backward Citations)
GB802843A
Cited
US2920062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |