Granted Patent
Utility
US 5,948,447 · App. 08/630,800
Apparatus for product recovery of polyolefings
Inventors:
Stephen Craig McHaney, Steven L. Oetting, Karl Herzog
Patented Case
View Patent ↗
Granted: Sep 7, 1999
Filed: Apr 10, 1996
Inventors
Stephen Craig McHaney
Steven L. Oetting
Karl Herzog
Assignee (at issue)
Huntsman Polymers 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.