Granted Patent
Utility
US 5,907,614 · App. 08/833,860
High density telephone network interface unit
Inventors:
Eric Bergstrom, Richard A. Yndestad, John A. Washburn
Patented Case
View Patent ↗
Granted: May 25, 1999
Filed: Apr 10, 1997
Inventors
Eric Bergstrom
Richard A. Yndestad
John A. Washburn
Assignee (at issue)
Teltrend, 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.