US2611728A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insecticidal compositions containing substituted aliphatic esters of diethyl dithiophosphoric acid
Assignee: Standard Oil Development Co
•
Filing: 1949-11-01
•
Granted: 1952-09-23
•
Expires: 1969-11-01
Abstract
No abstract record available.
Inventors
- 👤 Jeffrey H Bartlett
- 👤 Harry W Rudel
- 👤 Elmer B Cyphers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:05
CPC Classifications
A; A01; A01N; A01N57/00; A01N57/10; A01N57/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
AN INSECTICIDAL DUST COMPOSITION COMPRISING A SUBSTITUTED ALIPHATIC ESTER OF DIETHYL DITHIOPHOSPHORIC ACID SELECTED FROM THE GROUP CONSISTING OF THE CYANOETHYL AND CHLOROETHYL ESTERS ADMIXED WITH A POWDERED CLAY.
Claim 2
Dependent Claim
29 words
AN INSECTICIDAL DUST COMPOSITION COMPRISING A SUBSTITUTED ALIPHATIC ESTER OF DIETHYL DITHIOPHOSPHORIC ACID SELECTED FROM THE GROUP CONSISTING OF THE CYANOETHYL AND CHLOROETHYL ESTERS ADMIXED WITH A POWDERED CLAY.
References Cited (Backward Citations)
US1939951A
Cited
US2063629A
Cited
US2143639A
Cited
US2269396A
Cited
US2485573A
Cited
US2536647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |