Granted Patent
Utility
US 4,660,045 · App. 06/543,495
System for compensating polarization errors
Inventor:
John F. Clark
Patented Case
View Patent ↗
Granted: Apr 21, 1987
Filed: Oct 19, 1983
Inventor
John F. Clark
Assignee (at issue)
RCA Corporation
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.