Resources Contact Us Home
Browse by Category: Main > Entertainment & Recreation
Class Information
Number: D21/687
Name: Games, toys, and sports goods > Exercise equipment > Platform, frame, or support > Sit-up type
Description: Design for bending-type exercise for the waist and abdominal muscles.

Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
D408479 Exercise mat Apr. 20, 1999
D405854 Sit-up cushion Feb. 16, 1999
D400953 Waist exercise device Nov. 10, 1998
D391314 Exercise board Feb. 24, 1998
D385929 Abdominal exerciser Nov. 4, 1997
D385930 Exerciser Nov. 4, 1997
D384379 Abdominal exerciser Sep. 30, 1997
D381378 Abdominal exercise device Jul. 22, 1997
D372507 Sit-up exerciser Aug. 6, 1996
D371177 Aerobic exercise mat Jun. 25, 1996
D370506 Abdominal exercise board Jun. 4, 1996
D369841 Door mountable sit up exerciser May. 14, 1996
D355002 Abdominal muscle trainer Jan. 31, 1995
D353930 Jump ramp for wheeled vehicles Dec. 27, 1994
D353173 Sit up exercise support Dec. 6, 1994
D350576 Stomach flattening exerciser Sep. 13, 1994
D349344 Traction unit Aug. 2, 1994
D339618 Sit-up exerciser Sep. 21, 1993
D338932 Support for exerciser Aug. 31, 1993
D337139 Exercise bar Jul. 6, 1993
D334604 Sit-up exercise apparatus Apr. 6, 1993
D331270 Sit-up exercise support Nov. 24, 1992
D327927 Sit-up exercise bar Jul. 14, 1992
D321386 Support for sit-up exercise or similar article Nov. 5, 1991
D284394 Abdominal muscle trainer Jun. 24, 1986
D281267 Sit-up exercise device Nov. 5, 1985
D281006 Sit-up exercise anchor Oct. 15, 1985
D280843 Horizontal sit-up exerciser Oct. 1, 1985
D279917 Sit-up exercise device Jul. 30, 1985
D277218 Exercise for attachment to door or the like Jan. 15, 1985
D274828 Foot support for physical exerciser Jul. 24, 1984
4116434 Sit-up exercise apparatus Sep. 26, 1978
D249375 Physical exerciser for mounting on bed Sep. 12, 1978

1 2

  Recently Added Patents
Communications in an asynchronous cellular wireless network
Method and system for advertisement using internet browser to insert advertisements
Method and system for weighted fair queuing
Method for indicating the process of leaving a parking space
Image forming apparatus and control method therefor
Fire detector
Data processing apparatus and data processing method for reducing an uneven color made up of two or more ink colors
  Randomly Featured Patents
Reclining seat
Ice protection system for aircraft
Process for forming carbon-carbon composite
Stacked semiconductor package and fabricating method thereof
Sebum removing method
Materials for aligning liquid crystals
Carton filler and volume adjuster apparatus for packaging machines
Print shaft contamination detector
Oxidation of butane to acetic acid