Respiratory mask
Latest Hans Rudolph, Inc. Patents:
Description
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.
Referenced Cited
U.S. Patent Documents
D237219 | October 1975 | Kattwinkel |
2087042 | July 1937 | Phillips |
2295321 | September 1942 | Anderson |
2572254 | October 1951 | Folberth |
Patent History
Patent number: D301774
Type: Grant
Filed: May 18, 1987
Date of Patent: Jun 20, 1989
Assignee: Hans Rudolph, Inc. (Kansas City, MO)
Inventors: Kevin A. Rudolph (Leawood, KS), Donald C. Zavala (Iowa City, IA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Law Firm: Litman McMahon & Brown
Application Number: 7/51,124
Type: Grant
Filed: May 18, 1987
Date of Patent: Jun 20, 1989
Assignee: Hans Rudolph, Inc. (Kansas City, MO)
Inventors: Kevin A. Rudolph (Leawood, KS), Donald C. Zavala (Iowa City, IA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Kay H. Chin
Law Firm: Litman McMahon & Brown
Application Number: 7/51,124
Classifications
Current U.S. Class:
D29/7