Patent
   D444486
Priority
May 25 1998
Filed
Nov 23 1999
Issued
Jul 03 2001
Expiry
Jul 03 2015
Assg.orig
Entity
unknown
6
8
n/a
The ornamental design for a chipper knife, as shown and described.

FIG. 1 is a top plan view of one embodiment of a chipper knife showing my new design;

FIG. 2 is a bottom view thereof;

FIG. 3 is an end view thereof;

FIG. 4 is a perspective view thereof;

FIG. 5 is a top plan view of another embodiment thereof;

FIG. 6 is a bottom view of the embodiment of FIG. 5;

FIG. 7 is an end view of the embodiment of FIG. 5; and,

FIG. 8 is a perspective view of the embodiment of FIG. 5.

Biller, Sven-Olov

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Patent Priority Assignee Title
4047670, Mar 24 1975 IGGESUND TOOLS NORTH AMERICA, INC Knife device for a chopper
4545413, Dec 12 1979 Aktiebolaget Iggesunds Bruk Device for use in wood chippers
4969605, Apr 20 1989 Eclectic Machine Systems, Inc. Disposable, double-edged knives in granulator machines
5501256, Jul 18 1994 U.S. Natural Resources, Inc.; U S NATURAL RESOURCES, INC Chipper knife
5649579, Apr 20 1995 ANDRITZ PATENTVERWALFUNGS-GESSELSCHAFT M B H ; Kone Wood Oy Apparatus for clamping a chipper knife
6142197, Jun 18 1996 Andritz-Patentverwaltungs-GmbH Disc for a disc chipper
D370611, Jun 29 1994 Iggesund Tools AB Knife
SE9200567,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Nov 23 1999Iggesund AB(assignment on the face of the patent)
Dec 02 1999BILLER, SVEN-OLOVIggesund ABASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0105380831 pdf
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