Granted Patent
Utility
US 4,335,025 · App. 06/239,931
Process for the preparation of synthetic detergent bars, and products produced thereby
Inventors:
Graham Barker, Leopold Safrin, Martin J. Barabash
Patented Case
View Patent ↗
Granted: Jun 15, 1982
Filed: Mar 3, 1981
Inventors
Graham Barker
Leopold Safrin
Martin J. Barabash
Assignee (at issue)
Witco Chemical Corporation
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.