Granted Patent
Utility
US 5,823,839 · App. 08/780,210
Personal flotation device having elastic armhole periphery
Inventor:
Alexander Khanamirian
Patented Case
View Patent ↗
Granted: Oct 20, 1998
Filed: Jan 8, 1997
Inventor
Alexander Khanamirian
Assignee (at issue)
Extrasport, 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.