U.S. patent number D893,623 [Application Number D/644,256] was granted by the patent office on 2020-08-18 for lever system teaching tool.
This patent grant is currently assigned to The Prophet Corporation. The grantee listed for this patent is The Prophet Corporation. Invention is credited to Alison Marie Harguth, Jason Butler Koberstine.
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United States Patent |
D893,623 |
Koberstine , et al. |
August 18, 2020 |
Lever system teaching tool
Claims
CLAIM The ornamental design for a lever system teaching tool, as
shown and described.
Inventors: |
Koberstine; Jason Butler (Apple
Valley, MN), Harguth; Alison Marie (Owatonna, MN) |
Applicant: |
Name |
City |
State |
Country |
Type |
The Prophet Corporation |
Owatonna |
MN |
US |
|
|
Assignee: |
The Prophet Corporation
(Owatonna, MN)
|
Appl.
No.: |
D/644,256 |
Filed: |
April 16, 2018 |
Current U.S.
Class: |
D19/64;
D21/691 |
Current International
Class: |
1907 |
Field of
Search: |
;D19/59-64
;D21/691,686,826 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
|
|
|
|
|
|
|
2873777 |
|
Oct 2016 |
|
CA |
|
29713512 |
|
Sep 1997 |
|
DE |
|
Other References
Stem Supplies. Link:
https://www.stem-supplies.com/engineering/simple-and-complex-machines/lea-
rninglever-lever-set. Visited Sep. 5, 2019. LearnLever Lever Set.
(Year: 2019). cited by examiner .
Stem Supplies, Gopher Sport, .COPYRGT. Apr. 2018, pp. 16, 17, and
20-23. cited by applicant.
|
Primary Examiner: McVey; Lauren D
Attorney, Agent or Firm: Merchant & Gould P.C.
Description
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.
* * * * *
References