Granted Patent
Utility
US 6,568,087 · App. 10/021,841
Scraper with stowable file
Inventor:
Donald Gringer
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Dec 13, 2001
Inventor
Donald Gringer
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.