Patent US3052656A successfully refreshed from Google Patents.
US3052656A
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Process for the production of polymers containing disulphonimide groupings
Assignee: Bayer AG
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Filing: 1960-02-16
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Granted: 1962-09-04
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Expires: 1980-02-16
Abstract
No abstract record available.
Inventors
- 👤 Groene Heinz
- 👤 Suling Carlhans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:06
CPC Classifications
C; C08; C08F; C08F220/00; C08F220/02; C08F220/42; C08F220/44; C08F220/46; C08F28/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A PROCESS FOR THE PREPARATION OF POLYMERS CONTAINING DISUPHONIMIDE GROUPS, WHICH COMPRISES POLYMERIZING UNSATURATED DISULPHONIMIDES OF THE FOLLOWING FORMULA:
Claim 2
Dependent Claim
19 words
A PROCESS FOR THE PREPARATION OF POLYMERS CONTAINING DISUPHONIMIDE GROUPS, WHICH COMPRISES POLYMERIZING UNSATURATED DISULPHONIMIDES OF THE FOLLOWING FORMULA:
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) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |