Granted Patent
Utility
US 5,546,420 · App. 08/235,752
Methods of and devices for enhancing communications that use spread spectrum technology by using variable code techniques
Inventors:
Nambirajan Seshadri, Carl-Erik Wilhelm Sundberg
Patented Case
View Patent ↗
Granted: Aug 13, 1996
Filed: Apr 29, 1994
Inventors
Nambirajan Seshadri
Carl-Erik Wilhelm Sundberg
Assignee (at issue)
AT&T 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.