Granted Patent
Utility
US 6,754,357 · App. 10/349,545
Expandable in-ear device
Inventors:
Ian McIntosh, Roger Saulce
Patented Case
View Patent ↗
Granted: Jun 22, 2004
Filed: Jan 21, 2003
Inventors
Ian McIntosh
Roger Saulce
Assignee (at issue)
Sonomax Hearing Healthcare 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.