Granted Patent
Utility
US 6,497,132 · App. 09/927,159
Flaring die with stress relief features
Inventors:
Gary Mackay, Mel LeBlanc
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Aug 10, 2001
Inventors
Gary Mackay
Mel LeBlanc
Assignee (at issue)
TUBE-MAC INDUSTRIES, LTD.
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.