Granted Patent
Utility
US 4,888,281 · App. 06/674,253
Method of catalyzing chemical reactions
Inventors:
Gerald Schochetman, Richard J. Massey
Patented Case
View Patent ↗
Granted: Dec 19, 1989
Filed: Nov 27, 1984
Inventors
Gerald Schochetman
Richard J. Massey
Assignee (at issue)
IGEN Co., LTD
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.