Granted Patent
Utility
US 4,668,796 · App. 06/575,401
Racemates of optically active bicyclic imino-alpha-carboxylic esters
Inventors:
Rolf Geiger, Volker Teetz, Dietrich Langner
Patented Case
View Patent ↗
Granted: May 26, 1987
Filed: Jan 30, 1984
Inventors
Rolf Geiger
Volker Teetz
Dietrich Langner
Assignee (at issue)
Hoechst 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.