US3721703A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenoxyalkane-carboxylic acids,salts and esters thereof
Assignee: Hoechst AG
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Filing: 1969-01-09
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Granted: 1973-03-20
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Expires: 1989-01-09
Abstract
Abstract Phenoxyalkane-carboxylic acids with a 4-substituted phenoxy group in para position of the benzene ring, their esters with aliphatic, cycloaliphatic or araliphatic alcohols and their salts with non-toxic bases having a decreasing effect on the serum cholesterol level and a process for their manufacture.
Inventors
- 👤 H Nahm
- 👤 H Siedel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 14:07
CPC Classifications
C; C07; C07C; C07C205/00; C07C205/27; C07C205/35; C07C205/36; C07C205/38; C07C201/00; C07C201/06; C07C201/12; C07C231/00; C07C231/02; C07C51/00; C07C51/347; C07C51/367; C07C59/00; C07C59/40; C07C59/58; C07C59/64; C07C59/66; C07C59/68; C07C59/70
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
15 words
A compound as defined in claim 1 wherein R1 is halogen and R2 is hydrogen.
Claim 2
Dependent Claim
21 words
A compound as defined in claim 1 wherein R1 is halogen and R2 is alkyl with one or two carbon atoms.
Claim 3
Dependent Claim
15 words
A compound as defined in claim 1 wherein R1 is fluorine and R2 is hydrogen.
Claim 4
Dependent Claim
15 words
A compound as defined in claim 1 wherein R1 is fluorine and R2 is methyl.
Claim 5
Dependent Claim
15 words
A compound as defined in claim 1 wherein R1 is chlorine and R2 is hydrogen.
Claim 6
Dependent Claim
15 words
A compound as defined in claim 1 wherein R1 is chlorine and R2 is methyl.
Claim 7
Dependent Claim
15 words
A compound as defined in claim 1 wherein R1 is bromine and R2 is hydrogen.
Claim 8
Dependent Claim
15 words
A compound as defined in claim 1 wherein R1 is bromine and R2 is methyl.
Claim 9
Dependent Claim
21 words
A compound as defined in claim 1 wherein R1 is iodine and R2 is alkyl with one or two carbon atoms.
Claim 10
Dependent Claim
15 words
A compound as defined in claim 1 wherein R1 is methoxy and R2 is ethyl.
Claim 11
Dependent Claim
25 words
A compound of the formula wherein R1 and R2 have the meaning of claim 1 and R is alkyl with one to four carbon atoms.
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) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |