Granted Patent
Utility
US 5,651,627 · App. 08/612,266
Nib conversion unit
Inventors:
Martin E. Dowzall, David Wellings Pointon, Vazgen Houssian
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Mar 7, 1996
Inventors
Martin E. Dowzall
David Wellings Pointon
Vazgen Houssian
Assignee (at issue)
Esselte Corporation
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.