Granted Patent
Utility
US 5,200,548 · App. 07/763,027
2,4,5-Trihalogeno- and 2,3,4,5-tetrahalogenobenzene derivatives
Inventors:
Erich Klauke, Uwe Petersen, Klaus Grohe
Patented Case
View Patent ↗
Granted: Apr 6, 1993
Filed: Sep 20, 1991
Inventors
Erich Klauke
Uwe Petersen
Klaus Grohe
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.