Patent US1443716A successfully refreshed from Google Patents.
Patent US2710302A successfully refreshed from Google Patents.
US2710302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preparation of cyano compounds
Assignee: EIDP Inc
•
Filing: 1954-04-06
•
Granted: 1955-06-07
•
Expires: 1974-04-06
Abstract
No abstract record available.
Inventors
- 👤 Archibald M Hyson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 03:00
CPC Classifications
C; C07; C07C; C07C253/00; C07C2601/00; C07C2601/12; C07C2601/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
A PROCESS FOR THE PREPARATION OF CYANO-SUBSTITUTED ORGANIC COMPOUNDS WHICH COMPRISES INTERACTING HYDROGEN CYANIDE WITH AN ORGANIC HYDROPCROXIDE OF THE FORMULA ROOH WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF 1-HYDROXYCYCLOALKYL AND 1-ALKYL CYCLOALKY, SAID CYCLOALKYL GROUP CONTAINING FROM 5 TO 6 CARBON ATOMS IN THE RING, WHEREBY A CYANO-SUBSTITUTED ORGANIC COMPOUND IS PRODUCED, AND THEREAFTER SEPARATING THE SAID COMPOUND FROM THE RESULTING MIXTURE.
Claim 2
Dependent Claim
66 words
A PROCESS FOR THE PREPARATION OF CYANO-SUBSTITUTED ORGANIC COMPOUNDS WHICH COMPRISES INTERACTING HYDROGEN CYANIDE WITH AN ORGANIC HYDROPCROXIDE OF THE FORMULA ROOH WHEREIN R IS A MEMBER OF THE CLASS CONSISTING OF 1-HYDROXYCYCLOALKYL AND 1-ALKYL CYCLOALKY, SAID CYCLOALKYL GROUP CONTAINING FROM 5 TO 6 CARBON ATOMS IN THE RING, WHEREBY A CYANO-SUBSTITUTED ORGANIC COMPOUND IS PRODUCED, AND THEREAFTER SEPARATING THE SAID COMPOUND FROM THE RESULTING MIXTURE.
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) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |