USPatent applicationPatented

Progressive fresnel lens element

Granted 13 Nov 2018 · 2 office actions

Current assignee: DELTA INTELLIGENT BUILDING TECHNOLOGIES (USA), LLC · originally AMERLUX LLC

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Inventors: Feng Zhao · Examiner: Manpreet S Matharu · AU 2915 · TC 2900

Application· this page
29/567,112
filed 6 Jun 2016
Publication
Not published
not published
Patent
US D833670
granted 13 Nov 2018

Life of the application

10 dated events
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Description

1 parts
›FIG. 1 is a top, right perspective for…

FIG. 1 is a top, right perspective for the progressive fresnel lens element;

FIG. 2 is a top, left perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front end view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a bottom left perspective view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is a bottom right perspective view thereof; and,

FIG. 10 is a rear end view thereof.

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Claims as granted

1 claim

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Classifications

2 codes
USPC · US Patent Classification
D26/142D16/136

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File wrapper

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Pendency
2.4 y
890 days filing → grant
Office actions
2
non-final + final
Responses
2
no RCE
Examiner
Manpreet S Matharu
art unit 2915 · TC 2900
Citations: 20 back · 0 forward

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Documents

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Chain of title

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