Granted Patent
Utility
US 4,359,481 · App. 06/217,320
Liquid smoke concentrate
Inventors:
Johannes W. Smits, Franciscus A. Timmermans
Patented Case
View Patent ↗
Granted: Nov 16, 1982
Filed: Dec 17, 1980
Inventors
Johannes W. Smits
Franciscus A. Timmermans
Assignee (at issue)
Internationale Otrool Maatschappij Octropa B.V.
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.