Granted Patent
Utility
US 5,259,790 · App. 07/474,160
Insulators for coaxial cable connectors
Inventor:
Robert D. Hayward
Patented Case
View Patent ↗
Granted: Nov 9, 1993
Filed: Feb 2, 1990
Inventor
Robert D. Hayward
Assignee (at issue)
GILBERT ENGINEERING, LLC
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.