Granted Patent
Utility
US 5,407,004 · App. 07/917,849
Heat exchanger and method of assembly thereof
Inventors:
Joseph F. DeRisi, Lonnie E. Winston, Dudley Harrison, Ken Rawson
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Jul 21, 1992
Inventors
Joseph F. DeRisi
Lonnie E. Winston
Dudley Harrison
Ken Rawson
Assignee (at issue)
The Allen Company, 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.