US4157256A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tetrahydrophthalimide and herbicide containing the same
Assignee: Nihon Nohyaku Co Ltd
•
Filing: 1978-01-25
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Granted: 1979-06-05
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Expires: 1998-01-25
Abstract
Abstract N-(p-trifluoromethoxyphenyl)-3,4,5,6-tetrahydrophthalimide and N-(p-trifluoromethylthiophenyl)-3,4,5,6-tetrahydrophthalimide are capable of controlling annual and perennial weeds with high selectivity.
Inventors
- 👤 Kunikazu Hiraga
- 👤 Shoichi Shibayama
- 👤 Isao Yanai
- 👤 Tatsuo Harada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:18
CPC Classifications
C; C07; C07D; C07D209/00; C07D209/02; C07D209/44; C07D209/48; A; A01; A01N; A01N47/00; A01N47/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
1 words
N-(p-trifluoromethoxyphenyl)-3,4,5,6-tetrahydrophthalimide.
Claim 2
Dependent Claim
1 words
N-(p-trifluoromethoxyphenyl)-3,4,5,6-tetrahydrophthalimide.
Claim 3
Dependent Claim
17 words
A herbicidal composition comprising a carrier and as the active ingredient a herbicidally effective amount of N-(p-trifluoromethoxyphenyl)-3,4,5,6-tetrahydrophthalimide.
Claim 4
Dependent Claim
17 words
A herbicidal composition comprising a carrier and as the active ingredient a herbicidally effective amount of N-(p-trifluoromethoxyphenyl)-3,4,5,6-tetrahydrophthalimide.
Claim 5
Dependent Claim
22 words
A process of controlling undesired plants comprising applying to the plants a herbicidally effective amount of the compound according to claim 1.
Claim 6
Dependent Claim
27 words
A process according to claim 3 wherein the undesired plants are weeds in a rice field and the amount of herbicide is insufficient to injure the rice.
References Cited (Backward Citations)
US3878224A
Cited
US3984435A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-06-04 | 1982-12-04 | 1983-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-04 | 1986-12-04 | 1987-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-04 | 1990-12-04 | 1991-06-05 | $7700.00 | Window Closed / Lapsed |