Granted Patent
Utility
US 5,196,705 · App. 07/761,365
Sun exposure monitoring device
Inventor:
Paul Ryan
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: Aug 23, 1991
Inventor
Paul Ryan
Assignee (at issue)
Saitek Ltd.
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.