Granted Patent
Utility
US 6,477,250 · App. 09/357,612
Adjustable hybrid having dial tone alignment configuration
Inventor:
Laurence L. Sheets
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Jul 20, 1999
Inventor
Laurence L. Sheets
Assignee (at issue)
Westell Technologies, Inc.
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.