Granted Patent
Utility
US 5,081,322 · App. 07/479,401
Polypropylene wax and process for the production thereof
Inventors:
Andreas Winter, Volker Dolle, Jurgen Rohrmann, Martin Antberg, Ludwig Bohm, Walter Spaleck
Patented Case
View Patent ↗
Granted: Jan 14, 1992
Filed: Feb 13, 1990
Inventors
Andreas Winter
Volker Dolle
Jurgen Rohrmann
Martin Antberg
Ludwig Bohm
Walter Spaleck
Assignee (at issue)
Hoechst GmbH
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.