Patent
   D301774
Priority
May 18 1987
Filed
May 18 1987
Issued
Jun 20 1989
Expiry
Jun 20 2003
Assg.orig
Entity
unknown
6
4
n/a
The ornamental design for a respiratory mask, as shown and described.

FIG. 1 is a perspective view of a respiratory mask showing our new design, the broken lines of values and straps are for illustrative purposes only and form no part of the claimed design;

FIG. 2 is a side elevational view thereof, the opposite side elevational view being a mirror image of that shown;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof, the bottom plan view being a mirror image of that shown; and

FIG. 5 is a rear elevational view thereof.

Rudolph, Kevin A., Zavala, Donald C.

Patent Priority Assignee Title
6955650, Aug 02 1999 MICROLIFE MEDICAL HOME SOLUTIONS INC Metabolic calorimeter employing respiratory gas analysis
8136523, Mar 19 2007 Hans Rudolph, Inc. Ventilation mask with continuous seal connected by resilient cushion
D385960, Jul 11 1996 Hans Rudolph, Inc.; Hans Rudolph, Inc Nasal mask
D478660, Jul 01 2002 MICROLIFE MEDICAL HOME SOLUTIONS INC Disposable mask with sanitation insert for a respiratory analyzer
D573709, Mar 19 2007 HANS, RUDOLPH, INC Respiratory mask
D681194, May 05 2011 medin Medical Innovations GmbH Respiration mask pädiflow
Patent Priority Assignee Title
2087042,
2295321,
2572254,
237219,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 04 1987RUDOLPH, KEVIN A HANS RUDOLPH, INC , A CORP OF MISSOURIASSIGNMENT OF ASSIGNORS INTEREST 0047110540 pdf
May 04 1987ZAVALA, DONALD C HANS RUDOLPH, INC , A CORP OF MISSOURIASSIGNMENT OF ASSIGNORS INTEREST 0047110540 pdf
May 18 1987Hans Rudolph, Inc.(assignment on the face of the patent)
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