Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Breathing mask
D250047 Breathing mask
Patent Drawings:Drawing: D250047-2    Drawing: D250047-3    
« 1 »

(2 images)

Inventor: Lewis, et al.
Date Issued: October 24, 1978
Application: 05/733,624
Filed: October 18, 1976
Inventors: Lewis; George Tom (Fallbrook, CA)
Price; John Hamilton (La Jolla, CA)
Assignee: Chemetron Corporation (Chicago, IL)
Primary Examiner: Ansher; Bernard
Assistant Examiner:
Attorney Or Agent: Esser; Nicholas M.
U.S. Class: 128/205.25; D24/110.1
Field Of Search: D29/8; D29/9; 128/146R; 128/205; 128/146.3; 128/146.7; 128/202
International Class:
U.S Patent Documents: D197450; D197451; D209884; D225582; 2540567; 2843121; 3802431
Foreign Patent Documents:
Other References:









Abstract:
Claim: The ornamental design for a breathing apparatus, substantially as shown and described.
Description: FIG. 1 is a perspective view of a breathing mask showing our new design;

FIG. 2 is a left side elevation thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a bottom perspective view thereof, and

FIG. 5 is a right side elevation of a modified embodiment of the mask illustrated in FIG. 1.

The broken lines representing the human form is shown for illustrative purposes only.

* * * * *
 
 
  Recently Added Patents
Frame timing synchronization in a geostationary satellite system
Video stabilization
Tool box
Image sensing apparatus and method of controlling the image sensing apparatus
Level shifter and method of using the same
Sperm factor sequences
Manufacturing aircraft parts
  Randomly Featured Patents
Methods and apparatus to sense a PTAT reference in a fully isolated NPN-based bandgap reference
Mass memory and method for the manufacture of mass memories
Method for removal of permeate gases from a flexible tubular pipe and pipe embodied for carrying out the same
Leach-protective coatings for water meter components
Amplifying feedback FET semiconductor element
System for determining the location of an airborne vehicle to the earth using a satellite-base signal source
Light beam scanning apparatus employing beam modulation in accordance with the start of scan and end of scan signals
Process for bromination of pyrimidine
Method and apparatus for controlling exhausted gas emissions during cold-start of an internal combustion engine
Method for loading lipid vesicles