Granted Patent
Utility
US 4,729,685 · App. 07/077,346
Writing instrument with press mechanism and magnetic catch
Inventors:
Bernhard Bruhn, Jose Navarro-Ramil, Reiner Segebarth
Patented Case
View Patent ↗
Granted: Mar 8, 1988
Filed: Jul 24, 1987
Inventors
Bernhard Bruhn
Jose Navarro-Ramil
Reiner Segebarth
Assignee (at issue)
Koh-I-Noor Rapidograph, 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.