PTO
Wrapper
PDF
|
Dossier
Espace
Google
|
|
Patent
D764073
|
Priority
Feb 13 2015
|
Filed
Apr 28 2015
|
Issued
Aug 16 2016
|
Expiry
Aug 16 2030
|
|
Assg.orig
|
|
Entity
unknown
|
13
|
12
|
n/a
|
|
|
The ornamental design for a working ladder, as shown and described.
|
FIG. 1 is a left view showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a top view thereof;
FIG. 5 is a right view thereof;
FIG. 6 is a front perspective view thereof;
FIG. 7 is a rear perspective view of the working ladder with the lower step flipped over the upper step;
FIG. 8 is a front perspective view of the working ladder when folded; and,
FIG. 9 is a front perspective view of the working ladder with the handle frame raised.
Wang, Wanxing
Patent |
Priority |
Assignee |
Title |
11441356, |
Jun 08 2018 |
LITTLE GIANT LADDER SYSTEMS, LLC |
Ladders, top cap for ladders and trays for ladders |
D817516, |
Apr 05 2017 |
LOUISVILLE LADDER INC. |
End cap for a ladder |
D820472, |
Sep 21 2016 |
|
Step stool |
D888994, |
Mar 24 2020 |
JINHUA SHUNHE HOUSEHOLD PRODUCTS CO., LTD |
Ladder |
D930292, |
Aug 25 2019 |
|
Litter box stand |
D935054, |
Oct 19 2018 |
LITTLE GIANT LADDER SYSTEMS, LLC |
Ladder |
D943772, |
Oct 19 2018 |
LITTLE GIANT LADDER SYSTEMS, LLC |
Flip-up ladder |
D944417, |
Feb 08 2019 |
LITTLE GIANT LADDER SYSTEMS, LLC |
Top cap for a ladder |
D946176, |
Feb 08 2019 |
LITTLE GIANT LADDER SYSTEMS, LLC |
Ladder accessory |
D966557, |
Oct 19 2018 |
LITTLE GIANT LADDER SYSTEMS, LLC |
Ladder |
D967460, |
Feb 09 2021 |
Formosa Saint Jose Corp. |
Multi function tire climber step |
D968107, |
May 22 2020 |
POLDER PRODUCTS, LLC |
Step stool |
D969347, |
Oct 19 2018 |
LITTLE GIANT LADDER SYSTEMS, LLC |
Flip-up ladder |
Patent |
Priority |
Assignee |
Title |
4276955, |
May 30 1978 |
TEKRON LICENSING B V |
Multiple-purpose work unit |
5181583, |
Nov 18 1991 |
|
Ladder-like stilts for ceiling work |
5915498, |
Oct 13 1994 |
|
Ladder with nesting lateral support braces |
6779632, |
Apr 26 1999 |
|
Adjustable leveling stepladder |
20030057019, |
|
|
|
20040231920, |
|
|
|
20120073903, |
|
|
|
20140332316, |
|
|
|
D523155, |
Feb 03 2005 |
|
Foldable step ladder |
D562991, |
Nov 30 2006 |
DOREL HOME FURNISHINGS, INC |
Step stool |
D565745, |
Jun 09 2006 |
DOREL HOME FURNISHINGS, INC |
Step stool |
D706455, |
Nov 28 2012 |
|
Ladder |
Date |
Maintenance Fee Events |
n/a
Date |
Maintenance Schedule |
n/a