Patent US3961070A successfully refreshed from Google Patents.
US3961070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pesticidal dihalovinyl-spiroalkanecyclopropane derivatives
Assignee: Shell USA Inc
•
Filing: 1975-03-24
•
Granted: 1976-06-01
•
Expires: 1995-03-24
Abstract
Abstract Compounds of the formula ##EQU1## wherein R 1 and R 2 each is a halogen atom, R 3 is hydrogen, alkynyl or cyano; R 4 is phenoxyphenyl and n is an integer from 2 to 5, are useful as pesticides.
Inventors
- 👤 Royston H. Davis
- 👤 Robert J. G. Searle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:19
CPC Classifications
C; C07; C07C; C07C69/00; C07C69/74; C07C69/753
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
42 words
A dihalovinyl-spiroalkanecyclopropane derivative of the formula ##EQU4## wherein R 1 and R 2 independently each represents a halogen atom; R 3 represents a cyano group; R 4 represents phenyl substituted by phenoxy and n is an integer of from 2 to 5.
Claim 2
Dependent Claim
42 words
A dihalovinyl-spiroalkanecyclopropane derivative of the formula ##EQU4## wherein R 1 and R 2 independently each represents a halogen atom; R 3 represents a cyano group; R 4 represents phenyl substituted by phenoxy and n is an integer of from 2 to 5.
Claim 3
Dependent Claim
34 words
A dihalovinyl-spiroalkanecyclopropane derivative according to claim 1, wherein R 1 and R 2 each represents a halogen atom; R 3 represents a cyano group and n is an integer of from 2 to 3.
Claim 4
Dependent Claim
18 words
A dihalovinyl-spiroalkanecyclopropane derivative according to claim 2, wherein R 1 and R 2 each represents a chlorine atom.
Claim 5
Dependent Claim
28 words
A dihalovinyl-spiroalkanecyclopropane derivative according to claim 2, wherein R 1 and R 2 each represents a chlorine atom; R 3 represents a cyano group; and n is 3.
Claim 6
Dependent Claim
12 words
A dihalovinyl-spiroalkanecyclopropane derivative according to claim 4 wherein R 4 is 3-phenoxyphenyl.
Claim 7
Dependent Claim
23 words
A pesticidal composition comprising a carrier and/or a surface-active agent, together with, as active ingredient a dihalovinyl-spiroalkanecyclopropane derivative as claimed in claim 1.
Claim 8
Dependent Claim
31 words
A method of combating pests at a locus which comprises applying to the locus a pesticidally active amount of a dihalovinyl-spiroalkanecyclopropane derivative as claimed in claim 1 or a composition thereof.
References Cited (Backward Citations)
US3786052A
Cited
US3835176A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-06-01 | 1979-12-01 | 1980-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-06-01 | 1983-12-01 | 1984-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-06-01 | 1987-12-01 | 1988-06-01 | $7700.00 | Window Closed / Lapsed |