US4320140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synergistic insecticidal compositions
Assignee: HD ACQUISITION CORP
•
Filing: 1980-10-09
•
Granted: 1982-03-16
•
Expires: 2000-10-09
Abstract
Abstract Synergistic insecticidal compositions are mixtures of at least one insecticidally active water-soluble xanthene dye chosen from amongst erythrosine and Rose Bengal in admixture with the essentially non-insecticidally active and synergistically-effective fluorescein sodium.
Inventors
- 👤 Nathan N. Crounse
- 👤 James R. Heitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:39
CPC Classifications
A; A01; A01N; A01N31/00; A01N31/08; A01N43/00; A01N43/02; A01N43/04; A01N43/14; A01N43/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
77 words
A synergistic insecticidal composition effective against insects of the family Muscidae and of the family Culicidae which is a mixture consisting essentially of an insecticidally effective amount of at least one insecticide chosen from the group consisting of erythrosine and Rose Bengal in combination with a synergistically effective amount of an alkali metal salt of fluorescein in the range of approximately 0.3 to 1.0 part by weight of the latter per part by weight of said insecticide.
Claim 2
Dependent Claim
77 words
A synergistic insecticidal composition effective against insects of the family Muscidae and of the family Culicidae which is a mixture consisting essentially of an insecticidally effective amount of at least one insecticide chosen from the group consisting of erythrosine and Rose Bengal in combination with a synergistically effective amount of an alkali metal salt of fluorescein in the range of approximately 0.3 to 1.0 part by weight of the latter per part by weight of said insecticide.
Claim 3
Dependent Claim
13 words
A synergistic insecticidal composition according to claim 1 wherein the insecticide is erythrosine.
Claim 4
Dependent Claim
14 words
A synergistic insecticidal composition according to claim 1 wherein the insecticide is Rose Bengal.
Claim 5
Dependent Claim
19 words
A synergistic insecticidal composition according to claim 1 wherein the insecticide is a mixture of erythrosine and Rose Bengal.
Claim 6
Dependent Claim
23 words
A synergistic insecticidal composition according to claim 4 wherein the erythrosine, Rose Bengal and fluorescein sodium are in approximately equal parts by weight.
Claim 7
Dependent Claim
23 words
A synergistic insecticidal composition according to claim 1 containing an adjuvant selected from the group consisting of solid diluents, carriers and surface-active agents.
Claim 8
Dependent Claim
17 words
An aqueous solution containing an insecticidally effective amount of a synergistic insecticidal composition according to claim 1.
Claim 9
Dependent Claim
29 words
An aqueous solution of a synergistic insecticidal composition according to claim 1 containing an adjuvant selected from the group consisting of surface-active agents, dispersing agents and evaporation reducing agents.
Claim 10
Dependent Claim
39 words
A method for combating harmful insects of the family Muscidae and of the family Culicidae which comprises causing the insects to ingest an insecticidally effective amount of a composition according to claim 1 and exposing the insects to light.
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) | 1985-03-15 | 1985-09-14 | 1986-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-03-15 | 1989-09-14 | 1990-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-03-15 | 1993-09-14 | 1994-03-16 | $7700.00 | Window Closed / Lapsed |