US2801982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acrylonitrile polymer pastes
Assignee: Hoechst AG
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Filing: 1952-12-09
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Granted: 1957-08-06
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Expires: 1972-12-09
Abstract
No abstract record available.
Inventors
- 👤 Fuchs Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:18
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/02; D01F6/18; C; C08; C08K; C08K3/00; C08K3/16; D01F6/28; D01F6/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
24 words
A COMPOSITION OF MATTER COMPRISING AN ACRYLONITRILE POLYMER CONTAINING AT LEAST 85% OF ACRYLONTRILE IN STANTIALLY FREE OF ALKYLIDENE BISSACRYLAMIDES AND OF THE FLUORIDE.
References Cited (Backward Citations)
US2485896A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-05 | 1961-02-04 | 1961-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-05 | 1965-02-04 | 1965-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-05 | 1969-02-04 | 1969-08-06 | $7700.00 | Window Closed / Lapsed |