Granted Patent
Utility
US 4,831,210 · App. 07/127,783
Shields for electromagnetic radiation
Inventors:
Gary B. Larson, Donald Ferrier, Stanley J. Ruszczyk, Steven A. Castaldi
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Dec 2, 1987
Inventors
Gary B. Larson
Donald Ferrier
Stanley J. Ruszczyk
Steven A. Castaldi
Assignee (at issue)
MacDermid, Incorporated
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.