Patent
   D298457
Priority
Jan 24 1986
Filed
Jan 24 1986
Issued
Nov 08 1988
Expiry
Nov 08 2002
Assg.orig
Entity
unknown
4
4
n/a
The ornamental design for a vision tester, as shown.

FIG. 1 is a perspective view of a vision tester showing our new design.

FIG. 2 is a front elevational view thereof;

FIG. 3 is a back elevational view thereof;

FIG. 4 is a side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof.

Minkin, Neil, Minkin, Bonnie L.

Patent Priority Assignee Title
D342317, Oct 07 1991 VSI International, Inc. Vision tester
D348931, Mar 07 1991 ESSILOR INTERNATIONAL, S A Vision tester
D370260, Nov 29 1994 ESSILOR INTERNATIONAL, S A Combined vision tester and recharging stand therefor
D429175, Jul 20 1999 Citicorp Development Center, Inc. Desktop iris scanning device
Patent Priority Assignee Title
1990218,
2478662,
4279479, May 29 1980 EYEDEX ASSOCIATES, A LIMITED PARTNERSHIP OF NJ Vision screening kit
170296,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 24 1986Optical Technology Corporation(assignment on the face of the patent)
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