Granted Patent
Utility
US 4,829,751 · App. 07/115,439
Apparatus with replaceable trays on automatic packaging machines
Inventor:
Steven Tisma
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Oct 30, 1987
Inventor
Steven Tisma
Assignee (at issue)
Tisma Machinery 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.