USPatentGranted
S

Diving helmet

Granted 7 Nov 2000 · no office action yet

Current assignee: Well Co., Ltd. · originally Hitachi, Ltd.

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Inventors: George Tezuka, Kaori Iwafune · Examiner: Ruth McInroy · AU 294 · TC 2900

Application
104296
filed 3 May 1999
Publication
Not published
not published
Patent· this page
US D433542
granted 7 Nov 2000

Life of the patent

2 dated events
⤢ drag to zoomApr 1999Jul 1999Oct 1999Jan 2000Apr 2000Jul 2000Oct 2000Jan 2001Prosecution
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Description

1 parts
›FIG. 1 is a front view of a…

FIG. 1 is a front view of a diving helmet showing our new design.

FIG. 2 is a plan view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a underneath plan view thereof;

FIG. 6 is a perspective view thereof; and,

FIG. 7 is a side elevational view taken about the line A--A of FIG. 1.

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

Claims

1 · 1 independent · depth 1
1 granted claims

Classifications

1 codes
USPC · US Patent Classification
D29/107

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Pendency
1.5 y
554 days filing → grant
Office actions
0
on the grant's record
Examiner
Ruth McInroy
art unit 294 · TC 2900
Citations: 7 back · 0 forward

Chain of title

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