Granted Patent
Utility
US 4,715,989 · App. 06/821,310
Coating for EMI shielding
Inventors:
F. Ryan Sullivan, David M. Aleksa
Patented Case
View Patent ↗
Granted: Dec 29, 1987
Filed: Jan 22, 1986
Inventors
F. Ryan Sullivan
David M. Aleksa
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.