Granted Patent
Utility
US 5,650,107 · App. 08/439,847
Method for dewatering a molten synthetic resin
Inventors:
Heinz Vetter, Hartmut Schikowsky
Patented Case
View Patent ↗
Granted: Jul 22, 1997
Filed: May 12, 1995
Inventors
Heinz Vetter
Hartmut Schikowsky
Assignee (at issue)
ROHM CO., LTD.
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.