Patent
   D893623
Priority
Apr 16 2018
Filed
Apr 16 2018
Issued
Aug 18 2020
Expiry
Aug 18 2035
Assg.orig
Entity
unknown
0
15
n/a
The ornamental design for a lever system teaching tool, as shown and described.

FIG. 1 is top perspective view of a lever system teaching tool showing our new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a first side elevational view thereof;

FIG. 4 is a second side elevational view thereof;

FIG. 5 is a first end elevational view thereof;

FIG. 6 is a second end elevational view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the lever system teaching tool that form no part of the claim.

The wire frame lines shown throughout the views depict surface contour.

Harguth, Alison Marie, Koberstine, Jason Butler

Patent Priority Assignee Title
Patent Priority Assignee Title
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D318689, Jul 27 1988 Interel, Inc. Learning apparatus for evaluating and developing human resource and organizational skills
D433060, Dec 03 1996 Color cube model
D566767, Sep 14 2005 Teacher's aid
D686287, May 01 2012 Exercise stand
D806188, Apr 27 2016 Weight rack
D844078, Aug 01 2017 Exercise bar
D854102, Mar 01 2018 Appliance for training the sense of balance
DE29713512,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 16 2018THE PROPHET CORPORATION(assignment on the face of the patent)
Nov 15 2018KOBERSTINE, JASON BUTLERTHE PROPHET CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0476840310 pdf
Nov 15 2018HARGUTH, ALISON MARIETHE PROPHET CORPORATIONASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0476840324 pdf
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