Granted Patent
Utility
US 6,615,557 · App. 09/978,762
Break apart drywall finishing system
Inventor:
Timothy Smythe
Patented Case
View Patent ↗
Granted: Sep 9, 2003
Filed: Oct 16, 2001
Inventor
Timothy Smythe
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.