Granted Patent
Utility
US 4,534,830 · App. 06/539,202
Solvent recovery method
Inventor:
Manuel G. Pastor
Patented Case
View Patent ↗
Granted: Aug 13, 1985
Filed: Oct 5, 1983
Inventor
Manuel G. Pastor
Assignee (at issue)
Zerpa Industries, 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.