Granted Patent
Utility
US 5,915,015 · App. 08/709,251
Telephone having sealed acoustical passageway through flip cover hinge
Inventor:
Curtis W. Thornton
Patented Case
View Patent ↗
Granted: Jun 22, 1999
Filed: Sep 10, 1996
Inventor
Curtis W. Thornton
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.