US2524318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing larger arylalkanes from smaller ones
Assignee: Eli Lilly and Co
•
Filing: 1949-06-09
•
Granted: 1950-10-03
•
Expires: 1969-06-09
Abstract
No abstract record available.
Inventors
- 👤 Morris S Kharasch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:31
CPC Classifications
C; C07; C07C; C07C43/00; C07C43/02; C07C43/20; C07C43/205; C07C43/2055; C07C2/00; C07C2/86; C07C2/862; C07C41/00; C07C41/01; C07C41/18; C07C41/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
THE PROCESS OF PRODUCING LARGER ARYLALKANES WHICH HAVE A PLURALITY OF ARYL GROUPS OF THE CLASS CONSISTING OF PHENYL, HALOPHENYL IN WHICH THE HALOGEN HAS AN ATOMIC WEIGHT LESS THAN 81, LOWERALKYLPHENYL, XENYL, LOWER-ALKOXYPHENYL, AND METHYLENEDIOXYPHENYL, FROM SMALLER ARYLALKANES WHICH HAVE FEWER SUCH ARYL GROUPS AND NOT TO EXCEED 12 ALKANE CARBON ATOMS AND IN WHICH AN ALKANE CARBON ATOM DIRECTLY ATTACHED TO A RING NUCLEUS OF AN ARYL GROUP IS AN APRIMARY CARBON ATOM CARRYING AT LEAST ONE HYDROGEN ATOM; WHICH CONSISTS IN TREATING THE SMALLER ARYLALKANE 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 ALKAACYL GROUP OF NOT MORE THAN FOUR CARBON ATOMS.
Claim 2
Dependent Claim
122 words
THE PROCESS OF PRODUCING LARGER ARYLALKANES WHICH HAVE A PLURALITY OF ARYL GROUPS OF THE CLASS CONSISTING OF PHENYL, HALOPHENYL IN WHICH THE HALOGEN HAS AN ATOMIC WEIGHT LESS THAN 81, LOWERALKYLPHENYL, XENYL, LOWER-ALKOXYPHENYL, AND METHYLENEDIOXYPHENYL, FROM SMALLER ARYLALKANES WHICH HAVE FEWER SUCH ARYL GROUPS AND NOT TO EXCEED 12 ALKANE CARBON ATOMS AND IN WHICH AN ALKANE CARBON ATOM DIRECTLY ATTACHED TO A RING NUCLEUS OF AN ARYL GROUP IS AN APRIMARY CARBON ATOM CARRYING AT LEAST ONE HYDROGEN ATOM; WHICH CONSISTS IN TREATING THE SMALLER ARYLALKANE 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 ALKAACYL 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 |