Granted Patent
Utility
US 4,955,909 · App. 07/304,764
Textured silicone implant prosthesis
Inventors:
Robert A. Ersek, Arthur A. Beisang, Arthur A. Beisang
Patented Case
View Patent ↗
Granted: Sep 11, 1990
Filed: Jan 31, 1989
Inventors
Robert A. Ersek
Arthur A. Beisang
Arthur A. Beisang
Assignee (at issue)
Bioplasty, 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.