US3654302A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tetrahydrophthalanils
Assignee: Individual
•
Filing: 1970-01-30
•
Granted: 1972-04-04
•
Expires: 1990-01-30
Abstract
Abstract TETRAHYDROPHTHALANILS OF THE FORMULA 2-((X)N-PHENYL)-4,7-DIHYDROISOINDOLINE-1,3-DIONE WHEREIN X IS AT LEAST ONE MEMBER OF THE GROUP CONSISTING OF HALOGEN, LOWER ALKYL AND LOWER ALKOXY OF 1 TO 7 CARBON ATOMS, HALOGENATED LOWER ALKYL OF 1 TO 7 CARBON ATOMS, SULFAMOYL, LOWER ALKYLENEDIOXY OF 1 TO 4 CARBON ATOMS AND -N(-R)-R1 WHEREIN R AND R1 ARE SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND LOWER ALKYL OF 1 TO 7 CARBON ATOMS AND N IS AN INTEGER OF 1 TO 5 WHICH COMPOUNDS POSSESS INTERESTING PESTICIDAL HERBICIDAL ACTIVITIES.
Inventors
- 👤 Herbert Schwartz
- 👤 Joseph B Skaptason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:37
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48
Claims Analysis
Total Claims: 0
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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) | 1975-04-04 | 1975-10-04 | 1976-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-04 | 1979-10-04 | 1980-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-04 | 1983-10-04 | 1984-04-04 | $7700.00 | Window Closed / Lapsed |