Granted Patent
Utility
US 4,033,804 · App. 05/593,545
Reclaiming waste plastics
Inventor:
Eugene P. Baldyga
Patented Case
View Patent ↗
Granted: Jul 5, 1977
Filed: Jul 7, 1975
Inventor
Eugene P. Baldyga
Assignee (at issue)
Monsanto Company
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.