Granted Patent
Utility
US 4,811,894 · App. 07/249,230
Sleeve-type carrier handle
Inventor:
Richard L. Schuster
Patented Case
View Patent ↗
Granted: Mar 14, 1989
Filed: Sep 23, 1988
Inventor
Richard L. Schuster
Assignee (at issue)
Manville 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.