Granted Patent
Utility
US 4,032,391 · App. 05/609,947
Low energy recovery compounding and fabricating systems for plastic materials
Inventors:
Isaac Moked, Richard Handwerk, Walter R. Marshall
Patented Case
View Patent ↗
Granted: Jun 28, 1977
Filed: Sep 3, 1975
Inventors
Isaac Moked
Richard Handwerk
Walter R. Marshall
Assignee (at issue)
Union Carbide 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.