Granted Patent
Utility
US 4,207,331 · App. 05/904,742
2,9-Dioxatricyclo[4,3,1,0.sup.3,7 ]decane derivatives and pharmaceutical compositions thereof
Inventors:
Peter W. Thies, Akiji Asai, Samuel David
Patented Case
View Patent ↗
Granted: Jun 10, 1980
Filed: May 11, 1978
Inventors
Peter W. Thies
Akiji Asai
Samuel David
Assignee (at issue)
Kali-Chemie Pharma GmbH
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.