Granted Patent
Utility
US 5,779,604 · App. 08/610,512
Adjustable dumbbell
Inventors:
Carl K. Towley, III, Gregory S. Olson
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Mar 4, 1996
Inventors
Carl K. Towley, III
Gregory S. Olson
Assignee (at issue)
Intellbell Ventures, Inc.
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.