Granted Patent
Utility
US 4,513,285 · App. 06/289,688
Quasi coherent two-way ranging apparatus
Inventors:
Lawrence W. Pike, John W. Zscheile, Jr., Billie M. Spencer
Patented Case
View Patent ↗
Granted: Apr 23, 1985
Filed: Aug 3, 1981
Inventors
Lawrence W. Pike
John W. Zscheile, Jr.
Billie M. Spencer
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.