Granted Patent
Utility
US 5,899,267 · App. 09/152,808
Heat exchanger sealed tank and header assembly with gasket displacement prevention
Inventors:
Karl Paul Kroetsch, Jeffrey Leo Minner
Patented Case
View Patent ↗
Granted: May 4, 1999
Filed: Sep 14, 1998
Inventors
Karl Paul Kroetsch
Jeffrey Leo Minner
Assignee (at issue)
General Motors LLC
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.