Granted Patent
Utility
US 4,844,516 · App. 07/152,868
Connector for coil tubing or the like
Inventor:
Walter Baker
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Feb 5, 1988
Inventor
Walter Baker
Assignee (at issue)
Otis Engineering Corporation
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.