Granted Patent
Utility
US 4,629,328 · App. 06/770,735
Gravity blending apparatus and methods of gravity blending
Inventors:
William Francis Revelt, John B. Prows, Fred M. Thomson, Hugh E. Avery, Jr.
Patented Case
View Patent ↗
Granted: Dec 16, 1986
Filed: Aug 29, 1985
Inventors
William Francis Revelt
John B. Prows
Fred M. Thomson
Hugh E. Avery, Jr.
Assignee (at issue)
Allied Industrial Corp., Ltd.
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.