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Class Information
Number: 441/61
Name: Buoys, rafts, and aquatic devices > Swimming aid to increase stroke efficiency > Foot attached
Description: Device which is secured to the foot of a swimmer.










Sub-classes under this class:

Class Number Class Name Patents
441/64 Flipper 251
441/62 Repositioned by biasing means 15
441/63 With lock or latch 16


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8662946 Body surfing suit Mar. 4, 2014
8652013 Aquatic exercise device Feb. 18, 2014
8382542 Two fin swimming apparatus Feb. 26, 2013
8246523 Aquatic exercise device Aug. 21, 2012
7828615 Amphibious shoe and method of use Nov. 9, 2010
7794364 Shoe for deep-water-running exercise Sep. 14, 2010
7614928 Swim shoe with lateral fins Nov. 10, 2009
7537501 Swimming fin with heel strap fastening buckle May. 26, 2009
7510453 Swimming aid device Mar. 31, 2009
6986690 Propulsion structure for a water craft Jan. 17, 2006
6881113 Propulsion device for use with swimmers Apr. 19, 2005
6871420 Water shoe Mar. 29, 2005
6848958 Manually propelled personal flotation device Feb. 1, 2005
6736688 Manually propelled personal floatation device May. 18, 2004
6561862 Swim fin assembly May. 13, 2003
6503113 Non-mold method of forming objects and articles formed thereby Jan. 7, 2003
6342031 Water gaiters and sleeves Jan. 29, 2002
6322412 Swimming flipper with interchangeable blade Nov. 27, 2001
6283810 Non-mold method of forming objects and articles formed thereby Sep. 4, 2001
6241567 Non-mold method of forming objects and articles formed thereby Jun. 5, 2001
6227923 Foot propulsion device for float tube users May. 8, 2001
6193636 Swimming auxiliary device Feb. 27, 2001
6159064 Swimming fin Dec. 12, 2000
6077139 Floatstrider paddle fin forward propulsion system Jun. 20, 2000
6048238 Swimming aid device Apr. 11, 2000
5795204 Combination water shoe and swim fin Aug. 18, 1998
5645460 Retractable fin assembly Jul. 8, 1997
5597336 Unique swim fin Jan. 28, 1997
5545066 Swimming aid assembly Aug. 13, 1996
5531621 Forward propelling, retractable float tube fin, with automatic propulsion vanes Jul. 2, 1996
5527196 Tube fishing fin assembly Jun. 18, 1996
5522748 Flipper for swimming and production method Jun. 4, 1996
5421758 Scuba fin Jun. 6, 1995
5389058 Method and apparatus for exercising the lower back Feb. 14, 1995
5348503 Underwater paddle and vertical fin for swimmer Sep. 20, 1994
5338275 Hydro-therapeutic rehab-footgear Aug. 16, 1994
5326296 Swimmers aid Jul. 5, 1994
5273469 Composite swim fin with cantilevered heel Dec. 28, 1993
5219317 Aquatic exercise device Jun. 15, 1993
5163859 Swimming flipper with a composite blade and a method for its manufacture Nov. 17, 1992
5108328 Training fin device for swimming Apr. 28, 1992
5096189 Aquatic exercise device Mar. 17, 1992
5087217 Swimming shoe Feb. 11, 1992
5017169 Swim fin May. 21, 1991
4973049 Aquatic exerciser Nov. 27, 1990
4954112 Flipper for flipper swimming Sep. 4, 1990
4954111 Swimming flipper made of two different materials Sep. 4, 1990
4952183 Collapsible propulsion aids for swimmer's feet Aug. 28, 1990
4948385 Training fin device for swimming Aug. 14, 1990
4944703 Swim fin having multiple articulating transverse hydrofoil blades Jul. 31, 1990

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