Granted Patent
Utility
US 5,342,855 · App. 07/468,535
Stable dispersions of polyhydrazodicarbonamides useful in the preparation of polyurethane products having improved load-bearing capacity
Inventors:
Michael A. Lucarelli, Richard E. Keegan, Mark A. Koshute, Hans-Albrecht Freitag, Geza Avar
Patented Case
View Patent ↗
Granted: Aug 30, 1994
Filed: Jan 23, 1990
Inventors
Michael A. Lucarelli
Richard E. Keegan
Mark A. Koshute
Hans-Albrecht Freitag
Geza Avar
Assignee (at issue)
Miles Inc.
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.