USPatentGranted
S1

Exhaust ring for manufacturing semiconductors

Granted 17 Aug 2004 · no office action yet

Application
29/183,537
filed 12 Jun 2003
Publication
Not published
not published
Patent· this page
US D494552
granted 17 Aug 2004

Life of the patent

5 dated events
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Description

1 parts
›FIG. 1 is a front/top/right-side perspective view of…

FIG. 1 is a front/top/right-side perspective view of an exhaust ring for manufacturing semiconductors showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right-side elevational view thereof, the left-side elevational view being a mirror image and, therefore, not shown;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a reference front elevational view;

FIG. 8 is a cross-sectional view taken along line 8—8 in FIG. 7;

FIG. 9 is an enlarged, partial, cross-sectional view taken along line 9—9 in FIG. 8; and,

FIG. 10 is an enlarged, partial, cross-sectional view taken along line 10—10 in FIG. 8.

The exhaust ring for manufacturing semiconductors is used in a vacuum vessel for manufacturing semiconductors.

the grant prints no section headings; every part label below is ours, taken from that part's own first words

Classifications

2 codes
IPC · International Patent Classification
Section /
  • /DRW
USPC · US Patent Classification
D13/182

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File wrapper

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Pendency
1.2 y
432 days filing → grant
Office actions
0
none on record
Examiner
Prabhakar Deshmukh
art unit 2912 · TC 2900
Citations: 9 back · 0 forward

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Chain of title

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