Granted Patent
Utility
US 4,972,995 · App. 07/306,258
Two-fluid nozzle for spray drying an aqueous slurry
Inventors:
Robert E. Schara, Jay H. Katcher
Patented Case
View Patent ↗
Granted: Nov 27, 1990
Filed: Feb 1, 1989
Inventors
Robert E. Schara
Jay H. Katcher
Assignee (at issue)
Kraft General Foods, 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.