Granted Patent
Utility
US 4,606,842 · App. 06/756,578
Cleaning composition for glass and similar hard surfaces
Inventors:
George B. Keyes, Lux P. Requejo, Thomas B. Hilton
Patented Case
View Patent ↗
Granted: Aug 19, 1986
Filed: Jul 19, 1985
Inventors
George B. Keyes
Lux P. Requejo
Thomas B. Hilton
Assignee (at issue)
The Drackett Company
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.