Patent US2538729A successfully refreshed from Google Patents.
US2538729A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for control of mite and insect pests
Assignee: Dow Chemical Co
•
Filing: 1949-08-04
•
Granted: 1951-01-16
•
Expires: 1969-08-04
Abstract
No abstract record available.
Inventors
- 👤 Eugene E Kenaga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 10:11
CPC Classifications
A; A01; A01N; A01N41/00; A01N41/02; A01N41/04; A01N25/00; A01N25/02; A01N25/04; A01N29/00; A01N29/10; A01N2300/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
40 words
A COMPOSITION FOR THE CONTROL OF MITE AND INSECT PESTS COMPRISING AS ACTIVE TOXIC INGREDIENTS (1) THE 4-CHLOROPHENYL ESTER OF 4-CHLORORBENZENE SULFONIC ACID AND (2) THE GAMMA-ISOMER OF BENZENE HEXACHLORIDE, THE ACTIVE TOXIC INGREDIENTS IN SUCH COMPOSITION BEING MUTUALLY ACTIVATING.
Claim 2
Dependent Claim
40 words
A COMPOSITION FOR THE CONTROL OF MITE AND INSECT PESTS COMPRISING AS ACTIVE TOXIC INGREDIENTS (1) THE 4-CHLOROPHENYL ESTER OF 4-CHLORORBENZENE SULFONIC ACID AND (2) THE GAMMA-ISOMER OF BENZENE HEXACHLORIDE, THE ACTIVE TOXIC INGREDIENTS IN SUCH COMPOSITION BEING MUTUALLY ACTIVATING.
References Cited (Backward Citations)
US2148928A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-15 | 1954-07-17 | 1955-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-15 | 1958-07-17 | 1959-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-15 | 1962-07-17 | 1963-01-16 | $7700.00 | Window Closed / Lapsed |