Granted Patent
Utility
US 4,557,807 · App. 06/691,106
Static free molded plastic parts
Inventors:
Joseph R. Preston, Louis J. Hillenbrand
Patented Case
View Patent ↗
Granted: Dec 10, 1985
Filed: Jan 11, 1985
Inventors
Joseph R. Preston
Louis J. Hillenbrand
Assignee (at issue)
Battelle Development Corporation
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.