Granted Patent
Utility
US 5,322,489 · App. 08/045,355
Assisted chin and dip exercise apparatus
Inventors:
Gregory M. Webb, William F. Halsey
Patented Case
View Patent ↗
Granted: Jun 21, 1994
Filed: Apr 2, 1993
Inventors
Gregory M. Webb
William F. Halsey
Assignee (at issue)
Nautilus Acquisition Corporation
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.