US3736121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agent for stunting the growth of plants
Assignee: BASF SE
•
Filing: 1971-03-11
•
Granted: 1973-05-29
•
Expires: 1991-03-11
Abstract
Abstract A process for stunting the growth of plants with substituted pyridazinium compounds.
Inventors
- 👤 B Zech
- 👤 K H Koenig
- 👤 J Jung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:13
CPC Classifications
C; C07; C07D; C07D237/00; C07D237/02; C07D237/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
16 words
A process for stunting the growth of plants wherein 1,1-dimethyl-1,2,3,6-tetrahydropyridazinium bromide is used as active ingredient.
Claim 2
Dependent Claim
20 words
A process as claimed in claim 1 wherein the host soil is treated with said effective amount of said compound.
Claim 3
Dependent Claim
21 words
A process as claimed in claim 1 wherein said amount is in the range of 0.5 to 15 kg. per hectare.
References Cited (Backward Citations)
US2945857A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |