Granted Patent
Utility
US 4,501,903 · App. 06/511,073
Chloromethylation process
Inventor:
Stanley B. Mirviss
Patented Case
View Patent ↗
Granted: Feb 26, 1985
Filed: Jul 5, 1983
Inventor
Stanley B. Mirviss
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.