US2554482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of cyanoalkenes
Assignee: EIDP Inc
•
Filing: 1950-06-17
•
Granted: 1951-05-29
•
Expires: 1970-06-17
Abstract
No abstract record available.
Inventors
- 👤 Brown Northrop
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 02:16
CPC Classifications
C; C07; C07C; C07C253/00; C07C253/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
28 words
THE METHOD FOR PREPARING A CYANOALKENE WHEREIN THE SAID CYANOALKENE IS PRODUCED BY OXIDIZING A CYANOALKANE IN THE VAPOR PHASE WITH MOLECULAR OXYGEN IN THE PRESENCE OF IODINE.
Claim 2
Independent Claim
28 words
THE METHOD FOR PREPARING A CYANOALKENE WHEREIN THE SAID CYANOALKENE IS PRODUCED BY OXIDIZING A CYANOALKANE IN THE VAPOR PHASE WITH MOLECULAR OXYGEN IN THE PRESENCE OF IODINE.
References Cited (Backward Citations)
FR790262A
Cited
US2384737A
Cited
US2385552A
Cited
US2452505A
Cited
US2412437A
Cited
US2499055A
Cited
US2445693A
Cited
US2481826A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-28 | 1954-11-27 | 1955-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-28 | 1958-11-27 | 1959-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-28 | 1962-11-27 | 1963-05-29 | $7700.00 | Window Closed / Lapsed |