Granted Patent
Utility
US 6,091,964 · App. 09/034,260
Portable speech communication apparatus with sound channel in swingable flip
Inventor:
Stig Frohlund
Patented Case
View Patent ↗
Granted: Jul 18, 2000
Filed: Mar 4, 1998
Inventor
Stig Frohlund
Assignee (at issue)
TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
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.