Granted Patent
Utility
US 4,359,385 · App. 06/280,746
Filter press plate transfer mechanism
Inventor:
Bert Krivec
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Jul 6, 1981
Inventor
Bert Krivec
Assignee (at issue)
Envirex, Inc.
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.