Granted Patent
Utility
US 5,728,323 · App. 08/554,262
Process for preparing dialkyl tetrahalophthalates
Inventors:
James F. Day, James J. Good
Patented Case
View Patent ↗
Granted: Mar 17, 1998
Filed: Nov 6, 1995
Inventors
James F. Day
James J. Good
Assignee (at issue)
Unitex Chemical Corporation
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.