Granted Patent
Utility
US 5,470,521 · App. 08/210,268
Method for the thermal densification of thermoplastic articles
Inventors:
Richard A. Wenzel, Lewis E. Sable, Charles M. Krutchen, Phillip A. Williams
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Mar 17, 1994
Inventors
Richard A. Wenzel
Lewis E. Sable
Charles M. Krutchen
Phillip A. Williams
Assignee (at issue)
Mobil Oil 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.