Granted Patent
Utility
US 5,870,819 · App. 08/792,652
Apparatus for assembling a heat exchanger core
Inventors:
William Maybee, Eddy G. Mizzi, James C. Rollinson, Daniel Stark, Ronald Pardi, Walter Kowalcski, Paul Krause
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Jan 31, 1997
Inventors
William Maybee
Eddy G. Mizzi
James C. Rollinson
Daniel Stark
Ronald Pardi
Walter Kowalcski
Paul Krause
Assignees (at issue)
PROGRESSIVE TOOL & INDUSTRIES, CO.
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.