Granted Patent
Utility
US 5,750,779 · App. 08/655,929
Preparation process of acyl halide or sulfonyl halide
Inventors:
Teruyuki Nagata, Hidetoshi Hayashi, Hideki Mizuta
Patented Case
View Patent ↗
Granted: May 12, 1998
Filed: May 31, 1996
Inventors
Teruyuki Nagata
Hidetoshi Hayashi
Hideki Mizuta
Assignee (at issue)
Mitsui Toatsu Chemicals, Incorporated
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.