Granted Patent
Utility
US 4,494,252 · App. 06/525,306
Laryngeal prosthesis
Inventor:
Samir M. Chaoui
Patented Case
View Patent ↗
Granted: Jan 22, 1985
Filed: Aug 22, 1983
Inventor
Samir M. Chaoui
Assignee (at issue)
Bear Medical Systems, 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.