Granted Patent
Utility
US 4,474,685 · App. 06/363,322
High performance molding compounds for shielding electromagnetic interference
Inventor:
Myron C. Annis
Patented Case
View Patent ↗
Granted: Oct 2, 1984
Filed: Mar 29, 1982
Inventor
Myron C. Annis
Assignee (at issue)
Occidental Chemical 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.