Granted Patent
Utility
US 5,783,225 · App. 08/950,111
Apparatus for processing thermoplastic synthetic plastics material
Inventors:
Helmut Bacher, Helmuth Schulz, Georg Wendelin
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Oct 16, 1997
Inventors
Helmut Bacher
Helmuth Schulz
Georg Wendelin
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.