Patent
   D414855
Priority
Jul 28 1998
Filed
Jul 28 1998
Issued
Oct 05 1999
Expiry
Oct 05 2013
Assg.orig
Entity
unknown
3
19
n/a
The ornamental design for a pleated filter, as shown and described.

FIG. 1 is a front elevation view of a pleated filter, showing, my new design;

FIG. 2 is a top plan view of the pleated filter of FIG. 1, with the bottom plan view being identical thereto;

FIG. 3 is a rear elevation view of the pleated filter shown in FIG. 1; and,

FIG. 4 is a right side view of the pleated filter of FIG. 1, with the left side view being identical thereto.

The features depicted in broken lines are for illustrative purposes only and do not form a part of the claimed design.

Reuter, Robert J.

Patent Priority Assignee Title
8562708, Apr 30 2010 DiversiTech Corporation Three-dimensional filter
8709320, Apr 29 2011 DiversiTech Corporation Three-dimensional filter
D492761, Jun 27 2003 Hamilton Beach Brands, Inc Air cleaner filter
Patent Priority Assignee Title
2486728,
2790207,
3112264,
4215682, Feb 06 1978 Minnesota Mining and Manufacturing Company Melt-blown fibrous electrets
4363682, Apr 18 1980 Seplast Process for the superficial treatment of a fibrous filtering layer, which is non-woven and highly aerated, forming electret
4588537, Feb 04 1983 Minnesota Mining and Manufacturing Company Method for manufacturing an electret filter medium
4592815, Feb 10 1984 Japan Vilene Co., Ltd. Method of manufacturing an electret filter
4734195, Jul 25 1984 A.R.E. S.A.R.L. Filter cartridge having a honeycombed outer surface, and method of manufacture
4798850, May 19 1986 BTG International Limited Blended-fibre filter material
4904174, Sep 15 1988 EXXON CHEMICAL PATENTS INC , A CORP OF DE Apparatus for electrically charging meltblown webs (B-001)
5122048, Sep 24 1990 Exxon Chemical Patents Inc. Charging apparatus for meltblown webs
5230800, Feb 20 1992 MINNESOTA MINING AND MANUFACTURING COMPANY A CORPORATION OF DE Scrim inserted electrostatic fibrous filter web
5252111, Sep 01 1992 PREGIS HOLDING II CORPORATION; Pregis Corporation; PREGIS INNOVATIVE PACKAGING, INC ; PREGIS INTELLIPACK CORP Expandable multi-ply obliquely oriented honeycomb filter media
5350620, Nov 14 1989 Minnesota Mining and Manufacturing Filtration media comprising non-charged meltblown fibers and electrically charged staple fibers
5401446, Oct 09 1992 The University of Tennessee Research Corporation; UNIVERSITY OF TENNESSEE RESEARCH CORPORATION, THE Method and apparatus for the electrostatic charging of a web or film
5496507, Aug 17 1993 Minnesota Mining and Manufacturing Company Method of charging electret filter media
5512172, Jun 10 1994 MINNESOTA MINING AND MANUFACTUIRNG COMPANY Method for sealing the edge of a filter medium to a filter assembly and the filter assembly produced thereby
RE30782, Mar 25 1974 MINNESOTA MINING AND MANUFACTURING COMPANY, A CORP OF DE Method for the manufacture of an electret fibrous filter
WO9730771,
///
Executed onAssignorAssigneeConveyanceFrameReelDoc
Jul 28 19983M Innovative Properties Company(assignment on the face of the patent)
Jul 28 1998REUTER, ROBERT J Minnesota Mining and Manufacturing CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0093560367 pdf
Jun 16 1999Minnesota Mining and Manufacturing Company3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0100340650 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule