Granted Patent
Utility
US 6,536,973 · App. 09/901,081
Writing instrument
Inventors:
Donald A. DeLuca, Daniel A. Ferrara, Jr.
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: Jul 10, 2001
Inventors
Donald A. DeLuca
Daniel A. Ferrara, Jr.
Assignee (at issue)
SOCIETE BIC
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.