Granted Patent
Utility
US 5,439,949 · App. 07/883,897
Propylene compositions with improved resistance to thermoforming sag
Inventors:
Bennie M. Lucas, V. Krishnamurthy, John R. Bonser
Patented Case
View Patent ↗
Granted: Aug 8, 1995
Filed: May 11, 1992
Inventors
Bennie M. Lucas
V. Krishnamurthy
John R. Bonser
Assignee (at issue)
Rexene 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.