Patent US3904640A successfully refreshed from Google Patents.
US3904640A
Expired / Lapsed
US
⏱️ 0.0 years remaining
5-(t-butyl-1,3,4-thiadiazol-2-yl)-3-methyl-5-hydroxyimidazolidin-2-ore
Assignee: Velsicol Chemical LLC
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Filing: 1974-02-11
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Granted: 1975-09-09
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Expires: 1994-02-11
Abstract
Abstract This invention discloses the compound 1-(5-t-butyl-1,3,4thiadiazol-2-yl)-3-methyl-5-hydroxy-1,3-imidazolidin-2-one and its use as a herbicide.
Inventors
- 👤 John Krenzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:28
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; C07D285/125; C07D285/135
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
4 words
THE COMPOUND 1-(5-T-BUTYL-1,3,4-THIADIAZOL-2-YL)-3METHYL-5-HYDROXY-1,3-IMIDAZOLIDIN-2 -ONE.
Claim 2
Dependent Claim
4 words
THE COMPOUND 1-(5-T-BUTYL-1,3,4-THIADIAZOL-2-YL)-3METHYL-5-HYDROXY-1,3-IMIDAZOLIDIN-2 -ONE.
References Cited (Backward Citations)
US3759939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-08 | 1979-03-10 | 1979-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-08 | 1983-03-10 | 1983-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-08 | 1987-03-10 | 1987-09-09 | $7700.00 | Window Closed / Lapsed |