Granted Patent
Utility
US 5,679,800 · App. 07/914,246
2-Amino-3,5,disubstituted-4-halothiophenes and processes for the synthesis thereof
Inventors:
Robert Egli, Beat Henzi
Patented Case
View Patent ↗
Granted: Oct 21, 1997
Filed: Jul 15, 1992
Inventors
Robert Egli
Beat Henzi
Assignee (at issue)
Clariant Finance (BVI) Limited
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.