Granted Patent
Utility
US 5,234,915 · App. 07/587,240
Biodegradable gel
Inventors:
Rajiv Mathur, Donald F. H. Wallach
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Sep 24, 1990
Inventors
Rajiv Mathur
Donald F. H. Wallach
Assignee (at issue)
Micro Vesicular 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.