Granted Patent
Utility
US 4,590,655 · App. 06/748,030
Method for expanding a tubular member
Inventor:
Laszlo Javorik
Patented Case
View Patent ↗
Granted: May 27, 1986
Filed: Jun 24, 1985
Inventor
Laszlo Javorik
Assignee (at issue)
Grotnes Metalforming Systems, Inc.
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.