Patent
   D441440
Priority
Apr 28 2000
Filed
Apr 28 2000
Issued
May 01 2001
Expiry
May 01 2015
Assg.orig
Entity
unknown
2
1
n/a
I claim the ornamental design for a dust cassette assembly, as shown and described.

FIG. 1 is a perspective view of the outlet side of the dust cassette assembly

FIG. 2 is a side elevational view of the dust cassette assembly. The opposite side elevational view is a mirror image thereof

FIG. 3 is a front elevational view of the dust cassette assembly. The rear elevational view is a mirror image thereof

FIG. 4 is a top plan view of the outlet side of the dust cassette assembly; and,

FIG. 5 is a bottom plan view of the inlet side of the dust cassette assembly.

The mesh pattern shown in FIGS. 1 and 4 is understood to represent screening and extends uniformly throughout the areas represented.

Hartman, Richard J.

Patent Priority Assignee Title
D457231, Nov 16 1999 Aerocrine AB Filter for an analysis apparatus
D874627, Feb 12 2018 RECKITT & COLMAN OVERSEAS HYGIENE HOME LIMITED Air treatment device
Patent Priority Assignee Title
D274462, May 29 1981 North American Philips Corporation Filter cartridge housing
////
Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 27 2000HARTMAN, RICHARD J Mine Safety Appliances CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0107730683 pdf
Apr 28 2000Mine Safety Appliances Company(assignment on the face of the patent)
Nov 09 2010Mine Safety Appliances CompanyZEFON INTERNATIONAL, INC ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0254570915 pdf
Aug 30 2019ZEFON INTERNATIONAL, INC COLE-PARMER INSTRUMENT COMPANY LLCASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0563840847 pdf
n/a
Date Maintenance Fee Events


n/a
Date Maintenance Schedule