US3816451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Maleimide derivatives as plant growth regulators
Assignee: Abbott Laboratories
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Filing: 1971-11-02
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Granted: 1974-06-11
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Expires: 1991-11-02
Abstract
Abstract COVERS MALEIMIDE DERIVATIVES HAVING THE FOLLOWING GENERAL FORMULA: 1-R'',3-(R-O-),4-R"-3-PYRROLINE-2,5-DIONE WHERE R IS SELECTED FROM THE GROUP CONSISTING OF ALKYL, BENZYL, NAPHTHYL, PHENYL, AND SUBSTITUTED PHENYL, R'' IS SELECTED FROM THE GROUP CONSISTING OF HYDROGEN, PHENYL AND SUBSTITUTED PHENYL AND R" IS SELECTED FROM THE GROUP CONSISTING OF HALO AND RO. ALSO COVERS THE METHOD OF EMPLOYING THE JUST DESCRIBED DERIVATIVES AS PLANT GROWTH REGULATORS SPECIFICALLY, COVERS THE METHOD OF THEIR USE AS HERBICIDES.
Inventors
- 👤 A Crovetti
- 👤 D Lynch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:25
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/44; C07D207/444; C07D207/456
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) | 1977-06-10 | 1977-12-10 | 1978-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-10 | 1981-12-10 | 1982-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-10 | 1985-12-10 | 1986-06-11 | $7700.00 | Window Closed / Lapsed |