Granted Patent
Utility
US 5,831,977 · App. 08/706,493
Subtractive CDMA system with simultaneous subtraction in code space and direction-of-arrival space
Inventor:
Paul W. Dent
Patented Case
View Patent ↗
Granted: Nov 3, 1998
Filed: Sep 4, 1996
Inventor
Paul W. Dent
Assignee (at issue)
ERICSSON GMBH
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.