Granted Patent
Utility
US 4,513,101 · App. 06/517,809
Small bead auto exhaust catalyst
Inventors:
Alan W. Peters, Gwan Kim, Michael V. Ernest
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Jul 27, 1983
Inventors
Alan W. Peters
Gwan Kim
Michael V. Ernest
Assignee (at issue)
W. R. Grace & Co.
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.