US4216008A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butenoic acid derivatives
Assignee: Hoffmann La Roche Inc
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Filing: 1978-05-22
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Granted: 1980-08-05
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Expires: 1998-05-22
Abstract
Abstract The present invention is directed to compounds of the formula ##STR1## wherein R 1 is lower alkyl and R 2 is lower alkyl or aryl. Also provided are methods for preparation of these compounds. The compounds of formula I above are useful as plant growth regulants.
Inventors
- 👤 Manfred Weigele
- 👤 Dennis D. Keith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 20:20
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/44; A01N37/46
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
26 words
A compound of the formula ##STR14## wherein R 1 is lower alkyl and R 2 is selected from the group consisting of lower alkyl and aryl.
Claim 2
Dependent Claim
26 words
A compound of the formula ##STR14## wherein R 1 is lower alkyl and R 2 is selected from the group consisting of lower alkyl and aryl.
Claim 3
Dependent Claim
18 words
A compound according to claim 1 wherein R 1 is lower alkyl and R 2 is lower alkyl.
Claim 4
Dependent Claim
16 words
A compound according to claim 2 wherein R 1 is methyl and R 2 is methyl.
Claim 5
Dependent Claim
6 words
The compound 2-acetamido-4-methoxy-2-butenoic acid methyl ester.
Claim 6
Dependent Claim
6 words
The compound 2-acetamido-4-methoxy-2-butenoic acid methyl ester.
Claim 7
Dependent Claim
48 words
A plant growth stimulating composition comprising agriculturally acceptable adjuvants and as the active ingredient, an amount effective in stimulating plant growth of a compound of the formula ##STR15## wherein R 1 is lower alkyl and R 2 is selected from the group consisting of lower alkyl and aryl.
Claim 8
Dependent Claim
48 words
A plant growth stimulating composition comprising agriculturally acceptable adjuvants and as the active ingredient, an amount effective in stimulating plant growth of a compound of the formula ##STR15## wherein R 1 is lower alkyl and R 2 is selected from the group consisting of lower alkyl and aryl.
Claim 9
Dependent Claim
15 words
The composition of claim 5 wherein R 1 is methyl and R 2 is methyl.
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) | 1983-08-05 | 1984-02-04 | 1984-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-05 | 1988-02-04 | 1988-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-05 | 1992-02-04 | 1992-08-05 | $7700.00 | Window Closed / Lapsed |