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Timothy O. Armstrong
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Bellevue, WA, US
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Patents Grants
last 30 patents
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Patent Grant
Low impact stair climbing exercise apparatus
Patent number
D314597
Issue date
Feb 12, 1991
Precor Incorporated
Timothy O. Armstrong
D21 - Games, toys, and sports goods
Information
Patent Grant
Stair climbing exercise apparatus
Patent number
D304358
Issue date
Oct 31, 1989
Precor Incorporated
Timothy O. Armstrong
D21 - Games, toys, and sports goods
Information
Patent Grant
Low impact exercise equipment
Patent number
4,838,543
Issue date
Jun 13, 1989
Precor Incorporated
Timothy O. Armstrong
A63 - SPORTS GAMES AMUSEMENTS
Information
Patent Grant
Exercise bicycle
Patent number
D300046
Issue date
Feb 28, 1989
Precor Incorporated
Timothy O. Armstrong
D21 - Games, toys, and sports goods
Information
Patent Grant
Exercise apparatus ergometer
Patent number
4,770,411
Issue date
Sep 13, 1988
Precor Incorporated
Timothy O. Armstrong
A63 - SPORTS GAMES AMUSEMENTS