Granted Patent
Utility
US 5,865,997 · App. 08/835,805
Scraper blade assembly
Inventor:
Jonathan Isaacs
Patented Case
View Patent ↗
Granted: Feb 2, 1999
Filed: Apr 16, 1997
Inventor
Jonathan Isaacs
Assignee (at issue)
Ashbrook Corporation
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.