Granted Patent
Utility
US 4,382,467 · App. 06/223,114
Heat exchanger of the tube and plate type
Inventors:
Maurice R. Garrison, Victor J. Stachura
Patented Case
View Patent ↗
Granted: May 10, 1983
Filed: Jan 7, 1981
Inventors
Maurice R. Garrison
Victor J. Stachura
Assignee (at issue)
American Precision Industries, Inc.
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.