Granted Patent
Utility
US 5,175,611 · App. 07/809,699
Microwave integrated circuit package to eliminate alumina substrate cracking
Inventors:
Eric F. Richardson, Paul J. Brody
Patented Case
View Patent ↗
Granted: Dec 29, 1992
Filed: Dec 16, 1991
Inventors
Eric F. Richardson
Paul J. Brody
Assignee (at issue)
Watkins-Johnson Company, Inc.
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.