Patent
   D348931
Priority
Mar 07 1991
Filed
Nov 09 1992
Issued
Jul 19 1994
Expiry
Jul 19 2008
Assg.orig
Entity
unknown
2
4
n/a
The ornamental design for a vision tester, as shown and described.

FIG. 1 is a perspective view of a vision tester, showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is the right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a back elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

Torrey, Jonathan G.

Patent Priority Assignee Title
D370260, Nov 29 1994 ESSILOR INTERNATIONAL, S A Combined vision tester and recharging stand therefor
D413979, Jun 24 1998 Welch Allyn, Inc Vision screener
Patent Priority Assignee Title
4764007, Feb 24 1986 The United States of America as represented by the Secretary of the Air Glare susceptibility tester
4998820, Dec 12 1988 ESSILOR INTERNATIONAL, S A Instrument and method for use in optometric examinations
D298457, Jan 24 1986 Optical Technology Corporation Vision tester
D342317, Oct 07 1991 VSI International, Inc. Vision tester
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Nov 05 1992TORREY, JONATHAN G APPLIED VISION CONCEPTS, INC ASSIGNMENT OF ASSIGNORS INTEREST 0063200406 pdf
Nov 09 1992PRIO Corporation(assignment on the face of the patent)
Nov 10 1992APPLIED VISION CONCEPTS, INC PRIO CORPORATION, INC CHANGE OF NAME SEE DOCUMENT FOR DETAILS 0069000843 pdf
Aug 31 2006PRIO CorporationESSILOR INTERNATIONAL, S A ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0184330942 pdf
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