Granted Patent
Utility
US 5,105,486 · App. 07/540,282
Adjustable bed
Inventor:
Warren J. Peterson
Patented Case
View Patent ↗
Granted: Apr 21, 1992
Filed: Jun 18, 1990
Inventor
Warren J. Peterson
Assignee (at issue)
Joerns Healthcare 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.