US3862183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1,3,4-thiadiazine herbicides
Assignee: Gulf Research and Development Co
•
Filing: 1974-04-25
•
Granted: 1975-01-21
•
Expires: 1994-04-25
Abstract
Abstract New N-substituted derivatives of 2-amino-5-tert.butyl-6H-1,3,4thiadiazine are employed to combat undesired vegetation by both post- and pre-emergent application techniques, carbamyl substituted compounds are preferred.
Inventors
- 👤 Jr William C Doyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:08
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/15; C07D285/16
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
1 words
N-methyl-N''-(5-tert.butyl-6H-1,3,4-thiadiazin-2-yl)urea.
Claim 2
Dependent Claim
1 words
N-ethyl-N''-methyl-N-(5-tert.butyl-6H-1,3,4-thiadiazin-2-yl)urea.
Claim 3
Dependent Claim
2 words
Methyl N-(5-tert.butyl-6H-1,3,4-thiadiazin-2-yl)-N-methylcarbamate.
Claim 4
Dependent Claim
1 words
N-allyl-N''-(5-tert.butyl-6H-1,3,4-thiadiazin-2-yl)-N''-methylurea.
References Cited (Backward Citations)
US3290303A
Cited
US3779736A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-20 | 1978-07-22 | 1979-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-20 | 1982-07-22 | 1983-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-20 | 1986-07-22 | 1987-01-21 | $7700.00 | Window Closed / Lapsed |