Granted Patent
Utility
US 4,688,760 · App. 06/794,502
Lifting apparatus
Inventors:
David E. T. Garman, Richard M. Rimington
Patented Case
View Patent ↗
Granted: Aug 25, 1987
Filed: Nov 1, 1985
Inventors
David E. T. Garman
Richard M. Rimington
Assignee (at issue)
Mangar Aids 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.