Patent
   D421299
Priority
Oct 03 1997
Filed
Oct 03 1997
Issued
Feb 29 2000
Expiry
Feb 28 2014
Assg.orig
Entity
unknown
5
11
n/a
The ornamental design for a carriage for drop-down mask assembly, as shown and described.

FIG. 1 is a perspective view of a carriage for drop-down mask assembly showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a front elevational view thereof; and,

FIG. 6 is a bottom view thereof.

The broken line showing in FIGS. 1, 2, 3, 4 and 6 is for illustrative purposes only and forms no part of the claimed design.

Brostrom, Gerald M., Byram, David C.

Patent Priority Assignee Title
D518571, Nov 07 2003 3M Innovative Properties Company Face mask carriage
D652507, Mar 10 2010 3M Innovative Properties Company Respirator mask body
D690415, Jul 02 2012 3M Innovative Properties Company Respirator support structure
ER2074,
ER3129,
Patent Priority Assignee Title
3792702,
4934361, Oct 26 1986 DALLOZ INVESTMENT, INC Respirator
5062421, Nov 16 1987 Minnesota Mining and Manufacturing Company Respiratory mask having a soft, compliant facepiece and a thin, rigid insert and method of making
5181507, Oct 25 1991 DALLOZ INVESTMENT, INC Air purifying respirator suspension
5237986, Sep 13 1984 Minnesota Mining and Manufacturing Company Respirator harness assembly
5464010, Sep 15 1993 3M Innovative Properties Company Convenient "drop-down" respirator harness structure and method of use
5592937, Jun 07 1995 MSA Technology, LLC; Mine Safety Appliances Company, LLC Respirator mask with stiffening elements
DE19516859A1,
EP85746,
JP3412900,
WO8601734,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Oct 03 19973M Innovative Properties Company(assignment on the face of the patent)
Oct 03 1997BROSTROM, GERALD M Minnesota Mining and Manufacturing CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0087640609 pdf
Oct 03 1997BYRAM, DAVID C Minnesota Mining and Manufacturing CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0087640609 pdf
Oct 28 1999Minnesota Mining and Manufacturing Company3M Innovative Properties CompanyASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0103630460 pdf
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