Patent US3787432A successfully refreshed from Google Patents.
US3787432A
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Dialkyl acetals of 2-(3-(2-t-butyl-1,3,4-thiadiazol-5-yl)ureido)acetaldehyde
Assignee: Velsicol Chemical LLC
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Filing: 1971-12-16
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Granted: 1974-01-22
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Expires: 1991-12-16
Abstract
Abstract THIS INVENTION DISCLOSE NEW CHEMICAL COMPOUNDS OF THE FORMULA 2-(R1-O-CH(-O-R2)-CH2-N(-CH3)-CO-NH-),5-(CH3-C(-CH3)2-)- 1,3,4-THIADIAZOLE WHEREIN R1 AND R2 ARE EACH ALKYL OF UP TO 3 CARBON ATOMS. FURTHER DISCLOSED ARE HERBICIDAL COMPOSITIONS UTILIZING THE ABOVE DEFINED COMPOUNDS.
Inventors
- 👤 J Krenzer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:06
CPC Classifications
C; C07; C07D; C07D285/00; C07D285/01; C07D285/02; C07D285/04; C07D285/12; A; A01; A01N; A01N47/00; A01N47/08; A01N47/28; A01N47/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-01-21 | 1977-07-23 | 1978-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-01-21 | 1981-07-23 | 1982-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-01-21 | 1985-07-23 | 1986-01-22 | $7700.00 | Window Closed / Lapsed |