Granted Patent
Utility
US 6,732,425 · App. 10/010,152
Heat exchanger sleeve end expander apparatus
Inventor:
Bruce William Schafer
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Nov 8, 2001
Inventor
Bruce William Schafer
Assignee (at issue)
Framatome ANP
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.