US2755218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3, 4-methylenedioxyphenyl esters of aromatic sulfonic acids as synergists for pyrethrins and pyrethrin-type compounds
Assignee: Individual
•
Filing: 1955-06-15
•
Granted: 1956-07-17
•
Expires: 1975-06-15
Abstract
No abstract record available.
Inventors
- 👤 Beroza Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:48
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/44; C07D317/46; C07D317/48; C07D317/62; C07D317/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
AN INSECTICIDAL COMPOSITION COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF PYRETHRINS AND ALLETHRIN, AND, AS A SYNERGIST THEREFOR, A 3,4-METHYLENEDIOXYPHENYL ESTER OF A SULFONIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
30 words
AN INSECTICIDAL COMPOSITION COMPRISING A MEMBER SELECTED FROM THE GROUP CONSISTING OF PYRETHRINS AND ALLETHRIN, AND, AS A SYNERGIST THEREFOR, A 3,4-METHYLENEDIOXYPHENYL ESTER OF A SULFONIC ACID HAVING THE FORMULA
References Cited (Backward Citations)
US2486445A
Cited
US2486579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-17 | 1960-01-16 | 1960-07-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-17 | 1964-01-16 | 1964-07-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-17 | 1968-01-16 | 1968-07-17 | $7700.00 | Window Closed / Lapsed |