Granted Patent
Utility
US 6,046,297 · App. 08/758,067
Polyurethanes cured with 4,4'-methylene-bis-(3-chloro-2,6-diethylaniline-methylene
Inventors:
Ronald O. Rosenberg, Ajaib Singh, Ronald Walter Fuest
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Nov 27, 1996
Inventors
Ronald O. Rosenberg
Ajaib Singh
Ronald Walter Fuest
Assignee (at issue)
Uniroyal Chemical Company, 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.