Patent
   D928267
Priority
Dec 19 2019
Filed
Dec 19 2019
Issued
Aug 17 2021
Expiry
Aug 17 2036
Assg.orig
Entity
unknown
3
13
n/a
The ornamental design for a swimming assistance device, as shown and described.

FIG. 1 is a front elevation view of a swimming assistance device according to a first embodiment;

FIG. 2 is a rear elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a right side elevation view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a first perspective view thereof; and,

FIG. 8 is a second perspective view thereof.

The broken lines showing of the swimming assistance device is for the purpose of illustrating portions of the article that forms no part of the claimed design.

Zhang, Yiming, Liu, Yihua

Patent Priority Assignee Title
D978766, Feb 25 2022 Underwater propulsion device
ER5126,
ER853,
Patent Priority Assignee Title
4439165, Aug 17 1981 ROTHSTEIN, HAROLD LOUIS; ROTHSTEIN, ARTHUR Aquatic body board
D377072, Dec 22 1995 OPSETH, LEON Surfboard with transparent window
D447529, Feb 06 2001 WHAM-O, INC Sled
D466175, Jan 18 2001 Kickboard
D597160, Mar 31 2008 Water sports board
D628667, Jan 11 2008 Kickboard
D635213, Apr 26 2010 PROSLIDE TECHNOLOGY INC Floatation inner-tube
D638897, Feb 26 2010 Da Supa Fins, LLC Aquatic body board
D686683, Jan 04 2013 Water surface skimming system
D697568, Feb 04 2011 Rottefella AS Ski binding
D711995, Dec 04 2012 SUNSPECS OF OCEAN CITY, INC Wave-board
D718400, Feb 16 2011 Water sled apparatus
D731016, Aug 14 2007 SCOTT, MURRAY WAYMAN Swim board
///
Executed onAssignorAssigneeConveyanceFrameReelDoc
Dec 03 2019ZHANG, YIMINGSHENZHEN HOVERSTAR FLIGHT TECHNOLOGY CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0513800815 pdf
Dec 03 2019LIU, YIHUASHENZHEN HOVERSTAR FLIGHT TECHNOLOGY CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0513800815 pdf
Dec 19 2019SHENZHEN HOVERSTAR FLIGHT TECHNOLOGY CO., LTD.(assignment on the face of the patent)
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule