Granted Patent
Utility
US 4,553,537 · App. 06/502,729
Surgical barrier
Inventor:
Max Rosenberg
Patented Case
View Patent ↗
Granted: Nov 19, 1985
Filed: Jun 9, 1983
Inventor
Max Rosenberg
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.