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.:
Date of Patent:
Feb. 28, 1989
Filed:
Jul. 16, 1987
Hendrik P de Jongh, Oss, NL;
Martinus J van den Heuvel, Vught, NL;
Akzo N.V., Arnhem, NL;
Abstract
A novel class of steroids having pregnancy-terminating and/or pregnancy-preventing activity and a very low antiglucocorticoid activity have been found. The compounds have the general formula: ##STR1## wherein R.sub.1 and R.sub.2 each separately represent H or a (1-4 C) hydrocarbon radical or together represent a (2-6 C) hydrocarbon radical, R.sub.3 represents H or a (1-4 C) hydrocarbon radical, optionally having an OH substituent, R.sub.4 represents OH or an ester or ether group, or together with R.sub.3 represents O or a heterocyclic ring system containing O, and wherein the broken line indicates an optionally present double bond between the carbon atoms at positions 9 and 10 of the steroid skeleton.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile