Granted Patent
Utility
US 4,369,229 · App. 06/229,653
Composite hydrogel-forming article and method of making same
Inventor:
Kishore R. Shah
Patented Case
View Patent ↗
Granted: Jan 18, 1983
Filed: Jan 29, 1981
Inventor
Kishore R. Shah
Assignee (at issue)
The Kendall Company LP
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.