Granted Patent
Utility
US 4,226,944 · App. 05/960,390
Process for a polyurethane foam containing fragrance
Inventors:
Herman Stone, Peter D. Pauly
Patented Case
View Patent ↗
Granted: Oct 7, 1980
Filed: Nov 13, 1978
Inventors
Herman Stone
Peter D. Pauly
Assignee (at issue)
Tenneco 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.