Granted Patent
Utility
US 4,338,602 · App. 06/171,560
Semi-active guidance system
Inventors:
Robert S. Roeder, W. Baldwin Day, Harold W. Hunt, Robert E. Wilt
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: Jul 23, 1980
Inventors
Robert S. Roeder
W. Baldwin Day
Harold W. Hunt
Robert E. Wilt
Assignee (at issue)
Sperry 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.