Granted Patent
Utility
US 4,828,178 · App. 07/068,488
Method and apparatus for dispersing liquids or melts
Inventors:
Richard O. Tucker, Richard D. Rierson, Jr.
Patented Case
View Patent ↗
Granted: May 9, 1989
Filed: Jun 29, 1987
Inventors
Richard O. Tucker
Richard D. Rierson, Jr.
Assignee (at issue)
Hoechst Celanese 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.