Granted Patent
Utility
US 4,511,489 · App. 06/499,944
Composition for cleaning and imparting antistatic properties to plastics surfaces
Inventors:
Luz P. Requejo, Charles J. Butke
Patented Case
View Patent ↗
Granted: Apr 16, 1985
Filed: Jun 1, 1983
Inventors
Luz P. Requejo
Charles J. Butke
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.