Patent
   D491961
Priority
Apr 17 2003
Filed
May 12 2003
Issued
Jun 22 2004
Expiry
Jun 22 2018
Assg.orig
Entity
unknown
6
3
n/a
The ornamental design for a rotary grinding stone, as shown and described.

FIG. 1 is a perspective view of a rotary grinding stone having a centrally disposed hole according to the new design.

FIG. 2 is a front side view of the rotary grinding stone of FIG. 1;

FIG. 3 is a right side view of the rotary grinding stone of FIG. 1;

FIG. 4 is a rear side view of the rotary grinding stone of FIG. 1;

FIG. 5 is a left side view of the rotary grinding stone of FIG. 1;

FIG. 6 is a top view of the rotary grinding stone of FIG. 1;

FIG. 7 is a bottom view of the rotary grinding stone of FIG. 1; and,

FIG. 8 is a cross-sectional view of the rotary grinding stone of FIG. 1, taken at section A--A in FIG. 6.

Kazama, Kenichi

Patent Priority Assignee Title
D849068, Aug 18 2017 Sintokogio, Ltd. Abrasive material for barrel polishing
D849069, Aug 18 2017 Sintokogio, Ltd. Abrasive material for barrel polishing
D872780, Jun 01 2017 SUMITOMO ELECTRIC HARDMETAL CORP. Dresser component for grindstone
D879846, Jun 01 2017 SUMITOMO ELECTRIC HARDMETAL CORP. Dresser component for grindstone
D879847, Jun 01 2017 SUMITOMO ELECTRIC HARDMETAL CORP. Dresser component for grindstone
ER4904,
Patent Priority Assignee Title
3019570,
4023313, Aug 01 1975 Rotary sanding and stripping blade
196447,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 12 2003Shinano Electric Refining Co., Ltd.(assignment on the face of the patent)
Aug 28 2003KAZAMA, KENICHISHINANO ELECTRIC REFINING CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0144720761 pdf
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