Granted Patent
Utility
US 4,950,423 · App. 07/322,319
Coating of EMI shielding and method therefor
Inventor:
F. Ryan Sullivan
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Mar 10, 1989
Inventor
F. Ryan Sullivan
Assignee (at issue)
B. F. Goodrich Company
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.