Granted Patent
Utility
US 4,641,848 · App. 06/723,370
Wheelchair with rocking seat assembly
Inventor:
Robert C. Ayers
Patented Case
View Patent ↗
Granted: Feb 10, 1987
Filed: Apr 15, 1985
Inventor
Robert C. Ayers
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.