Granted Patent
Utility
US 6,825,238 · App. 10/353,642
Low acid organometallic catalyst for the production of flexible, semi-flexible and rigid polyurethane foams
Inventors:
Peter Charles Hohl, Lisa Ann Mercando, James Douglas Tobias
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Jan 29, 2003
Inventors
Peter Charles Hohl
Lisa Ann Mercando
James Douglas Tobias
Assignee (at issue)
Air Products and Chemicals, 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.