Granted Patent
Utility
US 5,188,754 · App. 07/743,258
Cleaning formulation and method that alleviates current problems
Inventors:
Henry J. Weltman, Tony L. Phillips
Patented Case
View Patent ↗
Granted: Feb 23, 1993
Filed: Aug 9, 1991
Inventors
Henry J. Weltman
Tony L. Phillips
Assignee (at issue)
General Dynamics 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.