U.S. patent number D840,055 [Application Number D/633,324] was granted by the patent office on 2019-02-05 for step ladder.
This patent grant is currently assigned to Tricam Industries, Inc.. The grantee listed for this patent is Tricam Industries, Inc.. Invention is credited to Yongxue Lu, Dennis D. Simpson, Jeff D. Skubic, Benjamin P. Williams.
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United States Patent |
D840,055 |
Skubic , et al. |
February 5, 2019 |
**Please see images for:
( Certificate of Correction ) ** |
Step ladder
Claims
CLAIM We claim the ornamental design for step ladder, as shown and
described.
Inventors: |
Skubic; Jeff D. (Eden Prairie,
MN), Simpson; Dennis D. (Plymouth, MN), Williams;
Benjamin P. (Chaska, MN), Lu; Yongxue (Shanghai,
CN) |
Applicant: |
Name |
City |
State |
Country |
Type |
Tricam Industries, Inc. |
Eden Prairie |
MN |
US |
|
|
Assignee: |
Tricam Industries, Inc. (Eden
Prairie, MN)
|
Appl.
No.: |
D/633,324 |
Filed: |
January 12, 2018 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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14617441 |
Feb 9, 2015 |
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Current U.S.
Class: |
D25/64 |
Current International
Class: |
2504 |
Field of
Search: |
;D25/62-65,68,69
;182/121,23,172,125,116,122,102,96,28,27,46,20,22,26,228.2,222,33,129,200,156,127,120,228.3,104,168,206,13,33.3,201,106,24,25,29,117,216,124,163,161,165,180.1,170 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
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2007101150 |
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Jan 2008 |
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AU |
|
2777593 |
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Oct 1999 |
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FR |
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2816984 |
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May 2002 |
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FR |
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WO 2010/084135 |
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Jul 2010 |
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WO |
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Other References
Polder.RTM. 3-Step Ladder. Crate and Barrel,
http://www.crateandbarrel.com/polder-3-step-ladder/s451498,
accessed May 6, 2015. cited by applicant .
Cosco Signature Series 6 ft. Premium Aluminum Step Ladder, Home
Depot,
http://www.homedepot.com/p/Cosco-Signature-Series-6-ft-Premium-Aluminum-S-
tep-Ladder-2061AABLD/203642157, accessed May 6, 2015. cited by
applicant .
Werner 4 ft. Fiberglass Platform Step Ladder with 375 lb. Load
Capacity Type IAA Duty Rating. Home Depot,
http://www.homedepot.com/p/Werner-4-ft-Fiberglass-Platform-Step-Ladder-wi-
th-375-lb-Load-Capacity-Type-IAA-Duty-Rating-P7404/203134335,
accessed May 6, 2015. cited by applicant .
Application and File History from U.S. Appl. No. 14/617,441, filed
Feb. 9, 2015, inventors Skubic et al. cited by applicant.
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Primary Examiner: Ramirez; Cynthia
Assistant Examiner: Colan; Gino
Attorney, Agent or Firm: Patterson Thuente Pedersen,
P.A.
Description
FIG. 1 is a front perspective view of a step ladder.
FIG. 2 is a front elevation view thereof.
FIG. 3 is a rear elevation view thereof.
FIG. 4 is a right side elevation view thereof.
FIG. 5 is a left side elevation view thereof.
FIG. 6 is a top plan view thereof.
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a rear perspective view thereof.
The dashed broken lines in the drawings depict portions of the step
ladder that form no part of the claimed design.
* * * * *
References