Granted Patent
Utility
US 4,865,895 · App. 07/221,708
Marker sleeve assembly
Inventors:
Frank P. Vlamings, Yutaka Kawazoye, Erling Hansen, David W. Wessels
Patented Case
View Patent ↗
Granted: Sep 12, 1989
Filed: Jul 20, 1988
Inventors
Frank P. Vlamings
Yutaka Kawazoye
Erling Hansen
David W. Wessels
Assignee (at issue)
Raychem Limited
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.