Patent
   D300274
Priority
Mar 16 1987
Filed
Mar 16 1987
Issued
Mar 14 1989
Expiry
Mar 14 2003
Assg.orig
Entity
unknown
7
8
n/a
The ornamental design for a four way respiratory valve, as shown and described.

FIG. 1 is a perspective view of a four way respiratory valve showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is an another left side elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a right side elevational view thereof;

FIG. 8 is a bottom plan view thereof.

The side elevational view taken perpendicular to a fourth face positioned directly to the right of the third face is a mirror image of FIG. 5.

Rudolph, Hans, Rudolph, Kevin A.

Patent Priority Assignee Title
6955650, Aug 02 1999 MICROLIFE MEDICAL HOME SOLUTIONS INC Metabolic calorimeter employing respiratory gas analysis
D303586, Aug 06 1987 Hans Rudolph, Inc. Three way Y-shaped respiratory valve
D305165, Aug 06 1987 Hans Rudolph, Inc. Two way check respiratory valve
D306086, Aug 06 1987 Hans Rudolph, Inc. Five way respiratory valve
D478660, Jul 01 2002 MICROLIFE MEDICAL HOME SOLUTIONS INC Disposable mask with sanitation insert for a respiratory analyzer
D634420, Jul 18 2007 ASAHI ORGANIC CHEMICALS INDUSTRY CO , LTD Valve
D760376, Jan 06 2014 Laerdal Medical AS Ventilating bag with safety valve
Patent Priority Assignee Title
3643686,
4098029, Mar 11 1977 AXLE SURGEONS, INC Axle grinder
4180066, Oct 20 1977 Vital Signs, Inc. Safety interface and valve for anesthesia gas scavenging
4436090, Jan 22 1979 Piston actuated, pilot valve operated breathing regulator
4489721, Dec 30 1982 The Regents of the University of California Double lumen tube adaptor and valve system for medical anesthesia circuits
4493339, May 05 1982 Parker Intangibles LLC Air valve for a breathing system
233372,
GB2162070,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 18 1987RUDOLPH, HANSHANS RUDOLPH, INC , 7200 WYANDOTTE, KANSAS CITY, MO , 64114, A CORP OF MO ASSIGNMENT OF ASSIGNORS INTEREST 0046780796 pdf
Feb 18 1987RUDOLPH, KEVIN A HANS RUDOLPH, INC , 7200 WYANDOTTE, KANSAS CITY, MO , 64114, A CORP OF MO ASSIGNMENT OF ASSIGNORS INTEREST 0046780796 pdf
Mar 16 1987Hans Rudolph, Inc.(assignment on the face of the patent)
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