Granted Patent
Utility
US 5,202,689 · App. 07/748,877
Lightweight focusing reflector for space
Inventors:
Robert W. Bussard, Thomas H. Wallace
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Aug 23, 1991
Inventors
Robert W. Bussard
Thomas H. Wallace
Assignee (at issue)
Apti 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.