Granted Patent
Utility
US 5,301,424 · App. 07/986,151
Method for hydraulically expanding tubular members
Inventor:
David A. Snyder
Patented Case
View Patent ↗
Granted: Apr 12, 1994
Filed: Nov 30, 1992
Inventor
David A. Snyder
Assignee (at issue)
Westinghouse Electric Company 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.