Granted Patent
Utility
US 6,822,622 · App. 10/208,507
Electronically reconfigurable microwave lens and shutter using cascaded frequency selective surfaces and polyimide macro-electro-mechanical systems
Inventors:
Thomas M. Crawford, P. Keith Kelly, Farzin Lalezari, Theresa C. Boone
Patented Case
View Patent ↗
Granted: Nov 23, 2004
Filed: Jul 29, 2002
Inventors
Thomas M. Crawford
P. Keith Kelly
Farzin Lalezari
Theresa C. Boone
Assignee (at issue)
Ball Aerospace & Technologies Corp.
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.