Granted Patent
Utility
US 5,218,519 · App. 07/093,970
Card cage system
Inventors:
Glenn S. Welch, Stephen Fidrych, Michael Romm
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Sep 8, 1987
Inventors
Glenn S. Welch
Stephen Fidrych
Michael Romm
Assignee (at issue)
Digital Equipment 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.