Granted Patent
Utility
US 4,773,872 · App. 07/048,576
Static contact member for a high-voltage bushing insert
Inventors:
Alan D. Borgstrom, Frank Stepniak
Patented Case
View Patent ↗
Granted: Sep 27, 1988
Filed: May 11, 1987
Inventors
Alan D. Borgstrom
Frank Stepniak
Assignee (at issue)
ARTERICA 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.