Granted Patent
Utility
US 5,254,230 · App. 07/916,299
Methods for preparing basic aluminum compounds with ultrasound
Inventors:
Vijay Joshi, Jawahar Parekh
Patented Case
View Patent ↗
Granted: Oct 19, 1993
Filed: Jul 17, 1992
Inventors
Vijay Joshi
Jawahar Parekh
Assignee (at issue)
Reheis, 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.