Granted Patent
Utility
US 5,509,971 · App. 08/379,284
Process for removing coatings from hard surfaces
Inventor:
Lawrence Kirschner
Patented Case
View Patent ↗
Granted: Apr 23, 1996
Filed: Jan 27, 1995
Inventor
Lawrence Kirschner
Assignee (at issue)
Church & Dwight Co., 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.