Granted Patent
Utility
US 4,845,180 · App. 07/171,396
Ultraviolet light absorbing compounds, compositions and methods for making same
Inventor:
Janis C. Henry
Patented Case
View Patent ↗
Granted: Jul 4, 1989
Filed: Mar 21, 1988
Inventor
Janis C. Henry
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.