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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4985585 B1

PDFFull Text
Date of Patent:
Jan. 15, 1991

Filed:

Feb. 23, 1989

Phenoxyalkylcarboxylic acid derivatives and process for their

Applicant:
Inventors:

Mitsuo Ohashi, Ohmiya, JP;

Katsuya Awano, Oyama, JP;

Toshio Tanaka, Tochigi, JP;

Tetsuya Kimura, Tochigi, JP;

Assignee:

Kyorin Pharmaceutical Co., Ltd., Tokyo, JP;

Attorney:

Oblon, Spivak, McClelland, Maier & Neustadt

Primary Examiner:

Michael L Shippen

Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
560-9 ; 560 11 ; 562426 ; 562429 ;
Abstract

Phenoxyalkylcarboxylic acid derivatives of the following formula, ##STR1## wherein R.sup.1 indicates hydrogen atom, methyl group or ethyl group, m is an integer from 2 to 5, and n is an integer from 3 to 8, X.sup.1 and X.sup.2 each independently represent sulfur atom, oxygen atom, sulfinyl group or sulfonyl group, proviso X.sup.1 and X.sup.2 are not simultaneously oxygen atom; their alkali salts and hydrates thereof are useful as antiallergic agents.

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Ohashi, Mitsuo. (1991). Phenoxyalkylcarboxylic acid derivatives and process for their (U.S. Patent No. 4985585). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4985585

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