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Abdominal exercise machine

DC
  • US 6,716,144 B1
  • Filed: 03/30/2000
  • Issued: 04/06/2004
  • Est. Priority Date: 02/25/2000
  • Status: Expired due to Term
First Claim
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1. An abdominal exercise machine comprising a horizontally extending seat mounted in a stationary position, a back support connected to the seat for pivotal movement between raised and lowered positions, and at least one resilient element connected to the back support for yieldably lifting the back support toward the raised position.

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