US4119783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3'Lower alkylcarbonyl oxanilic acid esters
Assignee: Pharmacia and Upjohn Co
•
Filing: 1977-02-18
•
Granted: 1978-10-10
•
Expires: 1997-02-18
Abstract
Abstract Pharmaceutical compositions having as the active agent a compound of the formula ##STR1## useful for preventing allergic manifestations in sensitized mammals and novel compounds.
Inventors
- 👤 Charles M. Hall
- 👤 John B. Wright
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:45
CPC Classifications
C; C07; C07C; C07C233/00; A; A61; A61P; A61P37/00; A61P37/08
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
41 words
A compound of the formula ##STR10## wherein R 1 is alkyl of one to three carbon atoms, inclusive, and R is alkyl of four to eight carbon atoms, inclusive, or (CH 2 ) n -phenyl wherein n is one or two.
Claim 2
Dependent Claim
41 words
A compound of the formula ##STR10## wherein R 1 is alkyl of one to three carbon atoms, inclusive, and R is alkyl of four to eight carbon atoms, inclusive, or (CH 2 ) n -phenyl wherein n is one or two.
Claim 3
Dependent Claim
12 words
A compound in accordance with claim 1 wherein R 1 is methyl.
Claim 4
Dependent Claim
6 words
n-Butyl 3'-acetyloxanilate according to claim 1.
Claim 5
Dependent Claim
6 words
Phenethyl 3'-acetyloxanilate according to claim 1.
References Cited (Backward Citations)
US3966965A
Cited
US3972911A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-10-09 | 1982-04-10 | 1982-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-09 | 1986-04-10 | 1986-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-09 | 1990-04-10 | 1990-10-10 | $7700.00 | Window Closed / Lapsed |