Granted Patent
Utility
US 5,390,731 · App. 08/267,626
Heat exchanger fin
Inventors:
Gerald Joseph Selm, Kathleen L. Frazier
Patented Case
View Patent ↗
Granted: Feb 21, 1995
Filed: Jun 29, 1994
Inventors
Gerald Joseph Selm
Kathleen L. Frazier
Assignee (at issue)
Ford Motor 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.