Granted Patent
Utility
US 6,723,406 · App. 09/844,084
Masking tape and its use
Inventor:
Oliver Nickel
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: Apr 27, 2001
Inventor
Oliver Nickel
Assignee (at issue)
tesa AG
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.