Granted Patent
Utility
US 6,503,015 · App. 09/944,331
Marker pen
Inventor:
Michael Bianco
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Aug 30, 2001
Inventor
Michael Bianco
Assignee (at issue)
JAKKS PACIFIC 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.