US4579850A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halogenated esters of pyridine alkanols and their amine salts as insect repellents
Assignee: Zeneca Inc
•
Filing: 1985-02-25
•
Granted: 1986-04-01
•
Expires: 2005-02-25
Abstract
Abstract Compounds having the formula <IMAGE> in which R is hydrogen or C1-C4 alkyl; R1 is halo-(C2-C5 alkyl); halo-(C2-C5 alkenyl) or halo-(1-methyl-cyclopropyl); and n is an integer from 1 to 3, and their amine salts are insect repellents.
Inventors
- 👤 Rayman Y. Wong
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:16
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/24; C07D213/28; C07D213/30; A; A01; A01N; A01N43/00; A01N43/34; A01N43/40
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
42 words
A compound having the formula ##STR8## in which R is hydrogen or methyl; R 1 is selected from the group consisting of 1,2,-dichlorovinyl; 3-chloropropyl; 1-bromo-2-methyl-propen-1-yl; 1,1-dimethyl-2-chloroethyl; 1-methyl-2,2-dichlorocyclopropyl; 1,2-dibromoethyl; and 5-bromopentyl; or a hydrochloride acid addition salt thereof at the pyridine nitrogen atom.
Claim 2
Dependent Claim
42 words
A compound having the formula ##STR8## in which R is hydrogen or methyl; R 1 is selected from the group consisting of 1,2,-dichlorovinyl; 3-chloropropyl; 1-bromo-2-methyl-propen-1-yl; 1,1-dimethyl-2-chloroethyl; 1-methyl-2,2-dichlorocyclopropyl; 1,2-dibromoethyl; and 5-bromopentyl; or a hydrochloride acid addition salt thereof at the pyridine nitrogen atom.
Claim 3
Dependent Claim
11 words
A compound according to claim 1 in which R is hydrogen.
Claim 4
Dependent Claim
14 words
A hydrochloride acid addition salt according to claim 1 in which R is hydrogen.
Claim 5
Dependent Claim
32 words
An insect repelling composition containing an amount of a compound according to claim 1 effective to repel insects from a locus, and an inert diluent or carrier suitable for insect repellent compositions.
Claim 6
Dependent Claim
31 words
A method for repelling insects comprising applying to a locus to be protected from insects, an amount of a compound according to claim 1, effective to repel insects from said locus.
Claim 7
Dependent Claim
31 words
A method for repelling insects comprising applying to a locus to be protected from insects, an amount of a composition according to claim 4, effective to repel insects from said locus.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-03-31 | 1989-09-30 | 1990-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-03-31 | 1993-09-30 | 1994-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-03-31 | 1997-09-30 | 1998-04-01 | $7700.00 | Window Closed / Lapsed |