Granted Patent
Utility
US 4,872,727 · App. 07/253,601
Adjustable armed chair
Inventor:
Ralph K. Rye
Patented Case
View Patent ↗
Granted: Oct 10, 1989
Filed: Oct 5, 1988
Inventor
Ralph K. Rye
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.