Granted Patent
Utility
US 5,265,647 · App. 07/745,598
Apparatus for transferring line travel device from one pipeline section to another
Inventors:
Sidney A. Taylor, Stanley J. Rogala
Patented Case
View Patent ↗
Granted: Nov 30, 1993
Filed: Aug 15, 1991
Inventors
Sidney A. Taylor
Stanley J. Rogala
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.