U.S. patent number D452,911 [Application Number D/138,022] was granted by the patent office on 2002-01-08 for respiratory filter.
This patent grant is currently assigned to Pharma Systems PS AB. Invention is credited to Curt Danielsson.
United States Patent |
D452,911 |
Danielsson |
January 8, 2002 |
Respiratory filter
Claims
The ornamental design for a respiratory filter, as shown and
described.
Inventors: |
Danielsson; Curt (Knivsta,
SE) |
Assignee: |
Pharma Systems PS AB (Knivsta,
SE)
|
Appl.
No.: |
D/138,022 |
Filed: |
March 6, 2001 |
Foreign Application Priority Data
Current U.S.
Class: |
D24/110;
D24/162 |
Current International
Class: |
2902 |
Field of
Search: |
;D24/162,110,110.6,110.1,110.4,164 ;55/DIG.33,DIG.35,521,DIG.31
;128/205.29,206.17,205.27 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Simmons; Ian
Attorney, Agent or Firm: Burns, Doane, Swecker & Mathis,
L.L.P.
Description
FIG. 1 is a rear, bottom, right side perspective view of a
respiratory filter showing my new design; and,
FIG. 2 is a front, top, left side perspective view thereof.
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