US3894036A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain 3-oxo-2(halophenyl)-4,5,6,7-tetrahydro-v-triazolo{8 1,5a{9 -pyridines
Assignee: Pfizer Inc
•
Filing: 1973-09-10
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Granted: 1975-07-08
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Expires: 1993-09-10
Abstract
Abstract A process for inhibiting plant growth comprising contacting a plant or its growth area with an effective amount of certain para-halophenyl substituted triazolines. A series of novel mesoionic para-halophenyl substituted triazolines. A novel process for preparing 3-phenyl-4-oxo-1,2,3-triazoline by contacting benzenediazoniumchloride and an Alpha -amino carboxylic acid and cyclodehydrating the triazene produced using acetic anhydride and pyridine.
Inventors
- 👤 Marwan J Abu-El-Haj
- 👤 James W Mcfarland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:02
CPC Classifications
C; C07; C07D; C07D249/00; C07D249/02; C07D249/04; C07D249/06
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 3
Dependent Claim
1 words
3-oxo-2-(2,4-dibromophenyl)-4,5,6,7-tetrahydro-v-triazolo(1,5-a)pyridine.
Claim 4
Dependent Claim
1 words
3-oxo-2-(2,4-dibromophenyl)-4,5,6,7-tetrahydro-v-triazolo(1,5-a)pyridine.
Claim 5
Dependent Claim
2 words
3-oxo-2-(2,4,5-trichlorophenyl)-4,5,6,7-tetrahydro-v-triazolo(1,5 -a)pyridine.
Claim 6
Dependent Claim
2 words
3-oxo-2-(2,4,5-trichlorophenyl)-4,5,6,7-tetrahydro-v-triazolo(1,5 -a)pyridine.
Claim 7
Dependent Claim
2 words
3-oxo-2-(2,4,6-trichlorophenyl)-4,5,6,7-tetrahydro-v-traizolo(1,5 -a)pyridine.
Claim 8
Dependent Claim
2 words
3-oxo-2-(2,4,6-trichlorophenyl)-4,5,6,7-tetrahydro-v-traizolo(1,5 -a)pyridine.
Claim 9
Dependent Claim
2 words
3-oxo-2-(2-chloro-4-bromophenyl)-4,5,6,7-tetrahydro-v-triazolo(1,5 -a)pyridine.
Claim 10
Dependent Claim
2 words
3-oxo-2-(2-chloro-4-bromophenyl)-4,5,6,7-tetrahydro-v-triazolo(1,5 -a)pyridine.
Claim 11
Dependent Claim
2 words
3-oxo-2-(2,4-dichlorophenyl)-4,5,6,7-tetrahydro-v-triazolo(1, 5-a)pyridine.
Claim 12
Dependent Claim
2 words
3-oxo-2-(2,4-dichlorophenyl)-4,5,6,7-tetrahydro-v-triazolo(1, 5-a)pyridine.
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) | 1978-07-07 | 1979-01-06 | 1979-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-07 | 1983-01-06 | 1983-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-07 | 1987-01-06 | 1987-07-08 | $7700.00 | Window Closed / Lapsed |