HVAC filter

Sundet , et al. October 9, 2

Patent Grant D449100

U.S. patent number D449,100 [Application Number D/128,491] was granted by the patent office on 2001-10-09 for hvac filter. This patent grant is currently assigned to 3M Innovative Properties Company. Invention is credited to James F. Pitzen, Douglas C. Sundet.


United States Patent D449,100
Sundet ,   et al. October 9, 2001

HVAC filter

Claims

The ornamental design for an HVAC filter, as shown and described.
Inventors: Sundet; Douglas C. (Hudson, WI), Pitzen; James F. (Maplewood, MN)
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Appl. No.: D/128,491
Filed: August 25, 2000

Current U.S. Class: D23/365
Current International Class: 2304
Field of Search: ;D23/365 ;55/DIG.31,486,525

References Cited [Referenced By]

U.S. Patent Documents
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D397777 September 1998 Mack, Jr.
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Foreign Patent Documents
1 757 508 Apr 1971 DE
2 217 049 Sep 1974 FR
WO 98/17368 Apr 1998 WO
Primary Examiner: Lichtenstein; Lisa
Attorney, Agent or Firm: Patchett; David B.

Description



FIG. 1 is a perspective view of an HVAC filter showing our new design;

FIG. 2 is a front view thereof, the rear view thereof being the same;

FIG. 3 is a top view thereof, the bottom view thereof being the same; and,

FIG. 4 is a side view thereof, the other side thereof being the same.

* * * * *


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