US2832792A
Expired / Lapsed
US
⏱️ 0.0 years remaining
3, 4-methylenedioxyphenyl acetals as synergists for pyrethrins
Assignee: Individual
•
Filing: 1955-06-15
•
Granted: 1958-04-29
•
Expires: 1975-06-15
Abstract
No abstract record available.
Inventors
- 👤 Beroza Morton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:13
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
9 words
A PROCESS OF PREPARING A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
9 words
A PROCESS OF PREPARING A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
US2421570A
Cited
US2665233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-28 | 1961-10-28 | 1962-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-28 | 1965-10-28 | 1966-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-28 | 1969-10-28 | 1970-04-29 | $7700.00 | Window Closed / Lapsed |