Patent US3232977A successfully refreshed from Google Patents.
US3232977A
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Method of producing acrylonitrile and methacrylonitrile
Assignee: Osterreichische Stickstoffwerke AG
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Filing: 1962-06-12
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Granted: 1966-02-01
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Expires: 1982-06-12
Abstract
No abstract record available.
Inventors
- 👤 Konig Heinz
- 👤 Straberger Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:25
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/14; B01J27/186; B01J27/188; B01J27/19; B01J27/192; C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
IN A PROCESS OF PRODUCING AN UNSATURATED NITRILE OF THE FORMULA
Claim 2
Dependent Claim
11 words
IN A PROCESS OF PRODUCING AN UNSATURATED NITRILE OF THE FORMULA
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |