Granted Patent
Utility
US 6,200,495 · App. 08/031,089
Premix compositions of polyol, blowing agent, and optionally additives having improved storage stability
Inventors:
Earl A. E. Lund, Robert G. Richard, Ian Shankland, David P. Wilson
Patented Case
View Patent ↗
Granted: Mar 13, 2001
Filed: Mar 12, 1993
Inventors
Earl A. E. Lund
Robert G. Richard
Ian Shankland
David P. Wilson
Assignee (at issue)
AlliedSignal, 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.