Granted Patent
Utility
US 4,969,899 · App. 07/320,358
Inflatable implant
Inventor:
James E. Cox
Patented Case
View Patent ↗
Granted: Nov 13, 1990
Filed: Mar 8, 1989
Inventor
James E. Cox
Assignee (at issue)
Cox-Uphoff International
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.