Granted Patent
Utility
US 5,382,928 · App. 08/008,277
RF filter having composite dielectric layer and method of manufacture
Inventors:
Thomas F. Davis, James F. Iannella
Patented Case
View Patent ↗
Granted: Jan 17, 1995
Filed: Jan 22, 1993
Inventors
Thomas F. Davis
James F. Iannella
Assignee (at issue)
Whitaker & 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.