Patent US3967950A successfully refreshed from Google Patents.
US3967950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combating weeds in rice with benzothiazole derivatives
Assignee: Nippon Soda Co Ltd
•
Filing: 1974-06-10
•
Granted: 1976-07-06
•
Expires: 1994-06-10
Abstract
Abstract Benzothiazole derivatives of the general formula:
Inventors
- 👤 Saburo Kano
- 👤 Osami Nomura
- 👤 Yoshihiko Hirono
- 👤 Hisao Ishikawa
- 👤 Shozo Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 05:15
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/82
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
21 words
A method of combating weeds in rice cultivation which comprises applying to the weed habitat a herbicidally effective amount of 3-(5-methylbenzothiazole-2-il)-1,1,3-trimethylurea.
Claim 2
Independent Claim
21 words
A method of combating weeds in rice cultivation which comprises applying to the weed habitat a herbicidally effective amount of 3-(5-methylbenzothiazole-2-il)-1,1,3-trimethylurea.
Claim 3
Independent Claim
21 words
A method of combating weeds in rice cultivation which comprises applying to the weed habitat a herbicidally effective amount of 3-(5-ethylbenzothiazole-2-il)-1,1,3-trimethylurea.
Claim 4
Independent Claim
21 words
A method of combating weeds in rice cultivation which comprises applying to the weed habitat a herbicidally effective amount of 3-(5-ethylbenzothiazole-2-il)-1,1,3-trimethylurea.
Claim 5
Independent Claim
21 words
A method of combating weeds in rice cultivation which comprises applying to the weed habitat a herbicidally effective amount of 3-(5-tert-butylbenzothiazole-2-il)-1,1,3-trimethylurea.
Claim 6
Independent Claim
21 words
A method of combating weeds in rice cultivation which comprises applying to the weed habitat a herbicidally effective amount of 3-(5-tert-butylbenzothiazole-2-il)-1,1,3-trimethylurea.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |