US3642736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for recovering vented monomers
Assignee: Monsanto Co
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Filing: 1969-05-13
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Granted: 1972-02-15
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Expires: 1989-05-13
Abstract
Abstract A METHOD IS HEREIN DESCRIBED FOR EFFECTIVELY RECOVERING VOLATILE, UNREACTED MONOMERS WHICH ARE ORDINARILY LOST TO THE ATMOSPHERE DURING COPOLYMERIZATION OF ACRYLONITRILE AND UNSATURATED ORGANICS, WHICH COMPRISES DEHUMIDIFYING THE VAPOR MIXTURE AND THEREAFTER ABSORBING THE VAPOR MIXTURE IN ABSORBING LIQUIDS.
Inventors
- 👤 Arley L Downs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:56
CPC Classifications
C; C08; C08J; C08J11/00; C08J11/02; Y; Y10; Y10S; Y10S526/00; Y10S526/92
Claims Analysis
Total Claims: 0
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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) | 1975-02-14 | 1975-08-16 | 1976-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-02-14 | 1979-08-16 | 1980-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-02-14 | 1983-08-16 | 1984-02-15 | $7700.00 | Window Closed / Lapsed |