Granted Patent
Utility
US 4,517,752 · App. 06/507,927
Splash retarder
Inventors:
Michael J. Devico, Gary Hillman
Patented Case
View Patent ↗
Granted: May 21, 1985
Filed: Jun 27, 1983
Inventors
Michael J. Devico
Gary Hillman
Assignee (at issue)
Vaccine Technology Limited
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.