Patent US2524319A successfully refreshed from Google Patents.
US2524319A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing larger cyanoalkanes from smaller ones
Assignee: Eli Lilly and Co
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Filing: 1949-07-11
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Granted: 1950-10-03
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Expires: 1969-07-11
Abstract
No abstract record available.
Inventors
- 👤 Morris S Kharasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:05
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
THE PROCESS OF PRODUCING LARGER CYANOALKANES WHICH HAVE A PLURALITY OF CYANO GROUPS FROM A SMALLER CYANOALKANES WHICH HAVE FEWER CYANO GROUPS AND NOT TO EXCEED 12 ALKANE CARBON ATOMS AND WHICH ARE MEMBERS OF THE CLASS CONSISTING OF ALKYL CYANIDES AND PHENYL ALKYL CYANIDES AND IN WHICH AN ALKANE CARBON ATOM DIRECTLY ATTACHED TO A CYANO GROUP IS AN APRIMARY CARBON ATOM CARRYING AT LEAST ONE HYDROGEN ATOM; WHICH CONSISTS IN TREATING THE SAID SMALLER CYANOALKANE AT ELEVATED TEMPERATURE AND IN THE SUBSTANTIAL ABSENCE OF WATER WITH A DIACYL PEROXIDE IN WHICH AT LEAST ONE OF THE ACYL GROUPS IS AN ALKACYL GROUP OF NOT MORE THAN FOUR CARBON ATOMS.
Claim 2
Dependent Claim
111 words
THE PROCESS OF PRODUCING LARGER CYANOALKANES WHICH HAVE A PLURALITY OF CYANO GROUPS FROM A SMALLER CYANOALKANES WHICH HAVE FEWER CYANO GROUPS AND NOT TO EXCEED 12 ALKANE CARBON ATOMS AND WHICH ARE MEMBERS OF THE CLASS CONSISTING OF ALKYL CYANIDES AND PHENYL ALKYL CYANIDES AND IN WHICH AN ALKANE CARBON ATOM DIRECTLY ATTACHED TO A CYANO GROUP IS AN APRIMARY CARBON ATOM CARRYING AT LEAST ONE HYDROGEN ATOM; WHICH CONSISTS IN TREATING THE SAID SMALLER CYANOALKANE AT ELEVATED TEMPERATURE AND IN THE SUBSTANTIAL ABSENCE OF WATER WITH A DIACYL PEROXIDE IN WHICH AT LEAST ONE OF THE ACYL GROUPS IS AN ALKACYL GROUP OF NOT MORE THAN FOUR CARBON ATOMS.
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) | 1953-10-02 | 1954-04-03 | 1954-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-02 | 1958-04-03 | 1958-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-02 | 1962-04-03 | 1962-10-03 | $7700.00 | Window Closed / Lapsed |