Granted Patent
Utility
US 4,043,682 · App. 05/721,497
Writing nib structure and method of manufacture
Inventors:
John E. McDaniel, Harold B. Morris
Patented Case
View Patent ↗
Granted: Aug 23, 1977
Filed: Sep 8, 1976
Inventors
John E. McDaniel
Harold B. Morris
Assignee (at issue)
Glasrock Products, 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.