Granted Patent
Utility
US 4,291,872 · App. 06/032,242
Ergometric exerciser with fluid-actuated indicator
Inventors:
Frank P. Brilando, Eugene J. Szymski
Patented Case
View Patent ↗
Granted: Sep 29, 1981
Filed: Apr 20, 1979
Inventors
Frank P. Brilando
Eugene J. Szymski
Assignee (at issue)
Excelsior Fitness Equipment Co.
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.