Granted Patent
Utility
US 5,769,955 · App. 08/748,449
Portable system for launching/catching pipeline pigs
Inventor:
Louis C. Kozisek
Patented Case
View Patent ↗
Granted: Jun 23, 1998
Filed: Nov 13, 1996
Inventor
Louis C. Kozisek
Assignee (at issue)
Atlantic Richfield Company
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.