Granted Patent
Utility
US 4,587,662 · App. 06/573,785
TDMA spread-spectrum receiver with coherent detection
Inventor:
Ulrich Langewellpott
Patented Case
View Patent ↗
Granted: May 6, 1986
Filed: Jan 25, 1984
Inventor
Ulrich Langewellpott
Assignee (at issue)
International Standard Electric 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.