Granted Patent
Utility
US 4,333,564 · App. 06/112,684
Method of controlling rheological properties of gel-like compositions
Inventors:
William Hertl, Anthony R. Zine, Jr.
Patented Case
View Patent ↗
Granted: Jun 8, 1982
Filed: Jan 16, 1980
Inventors
William Hertl
Anthony R. Zine, Jr.
Assignee (at issue)
Sherwood Medical Industries 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.