Granted Patent
Utility
US 5,054,993 · App. 07/363,965
Rotary intercept stacking apparatus and method
Inventors:
Leonard A. Watts, Medardo Espinosa
Patented Case
View Patent ↗
Granted: Oct 8, 1991
Filed: Jun 9, 1989
Inventors
Leonard A. Watts
Medardo Espinosa
Assignee (at issue)
IDAB Incorporated
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.