Granted Patent
Utility
US 5,693,686 · App. 08/194,433
Foam-forming mixtures with decreased decomposition of hydrohalocarbon blowing agents
Inventors:
John F. Szabat, Charles E. Mortimer, Joseph M. Sutej, Jeanne L. Beaumont, Steven L. Schilling, Harold R. Parsons, Robert P. Yeater
Patented Case
View Patent ↗
Granted: Dec 2, 1997
Filed: Feb 10, 1994
Inventors
John F. Szabat
Charles E. Mortimer
Joseph M. Sutej
Jeanne L. Beaumont
Steven L. Schilling
Harold R. Parsons
Robert P. Yeater
Assignee (at issue)
Bayer Aktiengesellschaft
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.