Granted Patent
Utility
US 5,112,406 · App. 07/801,758
Process for removing coatings from sensitive substrates, and sodium sulfate-containing blasting media useful therein
Inventors:
Michael S. Lajoie, Lawrence Kirschner
Patented Case
View Patent ↗
Granted: May 12, 1992
Filed: Dec 3, 1991
Inventors
Michael S. Lajoie
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.