Patent US3953507A successfully refreshed from Google Patents.
US3953507A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-t-butyl-α-(3,5-substituted phenoxy) alkyl amides and their use as herbicides
Assignee: Zeneca Inc
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Filing: 1974-10-29
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Granted: 1976-04-27
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Expires: 1994-10-29
Abstract
Abstract N-t-butyl-α-(3,5-substituted phenoxy) alkyl amides compounds having the formula ##SPC1## In which R 1 and R 2 are independently halogen or alkyl; R 3 is alkyl; and their use as herbicides.
Inventors
- 👤 Don R. Baker
- 👤 Francis H. Walker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:27
CPC Classifications
C; C07; C07C; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
24 words
A compound of the formula ##SPC7## in which R 1 and R 2 are both methyl or both chlorine and R 3 is ethyl.
Claim 2
Dependent Claim
24 words
A compound of the formula ##SPC7## in which R 1 and R 2 are both methyl or both chlorine and R 3 is ethyl.
Claim 3
Dependent Claim
20 words
The compound of claim 1 in which R 1 is chlorine, R 2 is chlorine and R 3 is ethyl.
Claim 4
Dependent Claim
20 words
The compound of claim 1 in which R 1 is methyl, R 2 is methyl and R 3 is ethyl.
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) | 1979-04-27 | 1979-10-27 | 1980-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-27 | 1983-10-27 | 1984-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-27 | 1987-10-27 | 1988-04-27 | $7700.00 | Window Closed / Lapsed |