Granted Patent
Utility
US 4,338,432 · App. 06/126,311
Indican and suspensions and gels thereof and their uses
Inventors:
Christopher James Lawson, Kenneth Charles Symes
Patented Case
View Patent ↗
Granted: Jul 6, 1982
Filed: Feb 29, 1980
Inventors
Christopher James Lawson
Kenneth Charles Symes
Assignee (at issue)
Talres Development (N.A.) N.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.