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:
Mar. 23, 1976
Filed:
Jun. 16, 1975
Applicant:
Inventors:
David F Crowe, San Jose, CA (US);
Richard H Peters, San Jose, CA (US);
Masato Tanabe, Palo Alto, CA (US);
George Detre, San Jose, CA (US);
Assignee:
Stanford Research Institute, Menlo Park, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07J / ;
U.S. Cl.
CPC ...
2603975 ; 2603974 ; 424238 ;
Abstract
19-Norpregna-1,3,5(10)-trien-3-ol and loweralkyl homologs thereof wherein the alkyl group attached in the 17.beta. position contains from 2 to 7 carbon atoms. Said compounds, along with the corresponding known 17.beta.-methyl derivative, are found to have antifertility activity, and particularly postcoital antifertility activity, along with very low estrogenic activity, when administered orally to mammals.