Granted Patent
Utility
US 5,284,255 · App. 07/995,207
Pivoted power column
Inventors:
L. Dale Foster, Timothy A. Kappers
Patented Case
View Patent ↗
Granted: Feb 8, 1994
Filed: Dec 22, 1992
Inventors
L. Dale Foster
Timothy A. Kappers
Assignee (at issue)
HILL-ROM, 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.