Granted Patent
Utility
US 5,535,938 · App. 08/230,747
Internal line up clamp
Inventor:
Trung Leduc
Patented Case
View Patent ↗
Granted: Jul 16, 1996
Filed: Apr 21, 1994
Inventor
Trung Leduc
Assignee (at issue)
CRC-EVANS PIPELINE INTERNATIONAL, 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.