Granted Patent
Utility
US 4,476,992 · App. 06/425,556
Reservoir cover with tensioned plates
Inventor:
Dennis H. Gerber
Patented Case
View Patent ↗
Granted: Oct 16, 1984
Filed: Sep 28, 1982
Inventor
Dennis H. Gerber
Assignee (at issue)
Burke Industries, 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.