Granted Patent
Utility
US 4,981,841 · App. 07/467,115
Methods and materials for use in corneal wound healing
Inventor:
David Richard Gibson
Patented Case
View Patent ↗
Granted: Jan 1, 1991
Filed: Mar 7, 1990
Inventor
David Richard Gibson
Assignee (at issue)
Allergan, 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.