Granted Patent
Utility
US 5,604,982 · App. 08/465,300
Method for mechanically expanding elliptical tubes
Inventors:
Scott Kent, Michael A. Gavlak
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Jun 5, 1995
Inventors
Scott Kent
Michael A. Gavlak
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.