Granted Patent
Utility
US 5,158,612 · App. 07/783,059
Foaming agent composition and process
Inventors:
Arpad Savoly, Dawn Elko
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Oct 25, 1991
Inventors
Arpad Savoly
Dawn Elko
Assignee (at issue)
Henkel Limited
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.