USPatent applicationPatented

Escalator smart traffic flow lighting device

Granted 20 Aug 2024 · 1 office action

Assignee: Otis Worldwide Corporation

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Inventors: Shunqiang Zhou, Denghui Zhang, Lilong Shi, Sihua Ling +1 · Examiner: Joseph Kukella · AU 2913 · TC 2900

Application· this page
29/717,574
filed 18 Dec 2019
Publication
Not published
not published
Patent
US D1039409
granted 20 Aug 2024

Life of the application

9 dated events
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Description

1 parts
›FIG. 1 is an isometric view of an…

FIG. 1 is an isometric view of an escalator smart traffic flow lighting device showing a first embodiment of our new design;

FIG. 2 is a front elevation view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a left side elevation view thereof;

FIG. 5 is a right side elevation view thereof;

FIG. 6 is a top-down plan view thereof;

FIG. 7 is a bottom-up plan view thereof;

FIG. 8 is a front elevation view of the escalator smart traffic flow lighting device in operation, with the weighted/angled (sloping downward from left to right) cross-hatching indicating a green-lighted portion;

FIG. 9 is a front elevation view of the escalator smart traffic flow lighting device in operation, with the weighted/angled (sloping downward from left to right) cross-hatching indicating a green-lighted portion; and,

FIG. 10 is a front elevation view of the escalator smart traffic flow lighting device in operation, with the weighted/vertical cross-hatching indicating a red-lighted portion.

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Claims as granted

1 claim

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Classifications

1 codes
USPC · US Patent Classification
D10/108

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Pendency
4.7 y
1,707 days filing → grant
Office actions
0
after a restriction
Examiner
Joseph Kukella
art unit 2913 · TC 2900
Citations: 12 back · 4 forward

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Chain of title

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