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 Title: |
USD431647:
Personal respiratory protection device having an exhalation valve
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| Country: |
US United States of America
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| Inventor: |
Henderson, Christopher P.; Durham, United Kingdom
Bryant, John W.; High Shincliffe, United Kingdom
Curran, Desmond T.; Durham, United Kingdom
Dyrud, James F.; New Richmond, WI
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| Assignee: |
3M Innovative Properties Company, St. Paul, MN
other patents from 3M INNOVATIVE PROPERTIES COMPANY (815358) (approx. 2,886)
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| Published / Filed: |
2000-10-03
/ 1996-09-06
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| Application Number: |
US1996000059264F
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| IPC Code: |
Locarno:
2902;
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| U.S. Class: |
Current:
D24/110.1;
D24/110.6;
Original:
D24/110.1;
D24/110.6;
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| Field of Search: |
D24/110.1,110.6
128/206.19,206.12,207.16,207.12,206.15,206.17
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| Attorney, Agent or Firm: |
Hanson, Karl G. ;
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| Primary / Asst. Examiners: |
Simmons, Ian;
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| Family: |
None
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| Claim: |
The ornamental design for a personal respiratory protection device having an exhalation valve, as shown and described.
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| Background / Summary: |
Show background / summary
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| Drawing Descriptions: |
Show drawing descriptions
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| Description: |
Show description
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| Forward References: |
Show 17 U.S. patent(s) that reference this one
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