Granted Patent
Utility
US 4,678,612 · App. 06/824,741
Process for the production of arylsulfonyl halides
Inventors:
Louis F. Bolzan, Edward D. Weil
Patented Case
View Patent ↗
Granted: Jul 7, 1987
Filed: Jan 31, 1986
Inventors
Louis F. Bolzan
Edward D. Weil
Assignee (at issue)
Stauffer Chemical Company
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.