USPatentGranted
S

Inside surface of a filter element having spacer construction

Granted 28 Mar 2000 · no office action yet

Assignee: Donaldson Company, Inc.

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Inventors: Andrew L. Albitz, Bruce R. Crenshaw, Dolan D. Bartels, Thomas G. Miller · Examiner: Lisa Lichtenstein · AU 291 · TC 2900

Application
Not granted yet
filed 19 Mar 1998
Publication
Not published
not published
Patent· this page
US D422071
granted 28 Mar 2000

Life of the patent

2 dated events
⤢ drag to zoomApr 1998Jul 1998Oct 1998Jan 1999Apr 1999Jul 1999Oct 1999Jan 2000Apr 2000Prosecution
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Description

1 parts
›FIG. 1 is a perspective view of the…

FIG. 1 is a perspective view of the inside surface of a filter element having spacer construction showing our new design. This particular perspective view is normally not seen through the side walls of the filter element, but is illustrated for purposes of clarity.

FIG. 2 is a top plan view thereof; and,

FIG. 3 is a side elevational view thereof, all the sides being identical. This particular side elevational view is normally not seen through the side walls of the filter element, but us illustrated for purposes of clarity.

The broken lines which define the bounds of the claimed design form no part thereof. The broken line environmental showing is for illustrative purposes only and forms no part of the claimed design.

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
D23/365

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File wrapper

Pendency
2.0 y
740 days filing → grant
Office actions
0
on the grant's record
Examiner
Lisa Lichtenstein
art unit 291 · TC 2900
Citations: 2 back · 0 forward

Chain of title

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Worldwide family

2 members · 2 offices
US1AU1
this patentIP5 & PCTother officessolid = grantedhover for detail · click to open
Members
2
DOCDB simple family 66654964
Offices
2
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Granted
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grant date present
›IP5 & PCT — 1 members
OfficePublicationKindPublishedFiledStatusTitle
USthis patentUS-D422071-SS28 Mar 200019 Mar 1998grantedInside surface of a filter element having spacer construction
›Other offices — 1 members
OfficePublicationKindPublishedFiledStatusTitle
AUAU-136939-SS31 Mar 19999 Sep 1998publishedFilter element

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