US3299007A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interpolymer of acrylonitrile, a masked isocyanate and a hydroxyl substituted monomer and a process for making same
Assignee: Bayer AG
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Filing: 1964-08-06
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Granted: 1967-01-17
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Expires: 1984-08-06
Abstract
No abstract record available.
Inventors
- 👤 Suling Carlhans
- 👤 Kuntz Egon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:23
CPC Classifications
C; C08; C08F; C08F28/00; C08F20/00; C08F20/02; C08F20/42; C08F20/52; C08F20/54; C08F20/58; C08F220/00; C08F220/02; C08F220/42; C08F220/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A FIBER-FORMING CROSS-LINKABLE ACRYLONITRILE COPOLYMER COMPRISING AT LEAST 80% OF ACRYLONITRILE, A MASKED ISOCYANATE AND AN ETHYLENICALLY UNSATURATED MONOMER CONTAINING AT LEAST ONE HYDROXYL GROUP SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY HYDROXYL GROUPS, SAID HYDROXYL GROUP CONTAINING MONOMER BEING PRESENT IN SAID COPOLYMER IN AN AMOUNT OF FROM 0.1% TO ABOUT 15%.
Claim 2
Dependent Claim
55 words
A FIBER-FORMING CROSS-LINKABLE ACRYLONITRILE COPOLYMER COMPRISING AT LEAST 80% OF ACRYLONITRILE, A MASKED ISOCYANATE AND AN ETHYLENICALLY UNSATURATED MONOMER CONTAINING AT LEAST ONE HYDROXYL GROUP SELECTED FROM THE GROUP CONSISTING OF PRIMARY AND SECONDARY HYDROXYL GROUPS, SAID HYDROXYL GROUP CONTAINING MONOMER BEING PRESENT IN SAID COPOLYMER IN AN AMOUNT OF FROM 0.1% TO ABOUT 15%.
References Cited (Backward Citations)
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 |