Granted Patent
Utility
US 5,719,285 · App. 08/514,278
Process for the preparation of polychloropyrimidines
Inventor:
Guido Steffan
Patented Case
View Patent ↗
Granted: Feb 17, 1998
Filed: Aug 11, 1995
Inventor
Guido Steffan
Assignee (at issue)
Bayer Aktiengesellschaft
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.