Patent
   D365149
Priority
May 31 1994
Filed
May 31 1994
Issued
Dec 12 1995
Expiry
Dec 12 2009
Assg.orig
Entity
unknown
2
3
n/a
The ornamental design for an ophthalmic refractor, as shown.

FIG. 1 is a rear perspective view of the an ophthalmic refractor showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a top view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a bottom view thereof.

Wood, David E., Burton, Roy H.

Patent Priority Assignee Title
D374720, Jun 08 1995 Ophthalmic refractor
D550845, Apr 11 2006 Kabushiki Kaisha Topcon Optometer
Patent Priority Assignee Title
4606624, Oct 13 1983 R. H. Burton Company Refractor having simplified cylinder lens assembly
4840479, Mar 16 1987 Crossed cylinder lenses refractor with three-lens variable crossed cylinder assembly and method of use
4943162, Nov 09 1984 Astigmatic self-refractor and method of use
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Executed onAssignorAssigneeConveyanceFrameReelDoc
May 04 1994BURTON, ROY H R H BURTON COMPANYASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0070280790 pdf
May 11 1994WOOD, DAVID E R H BURTON COMPANYASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0070280790 pdf
May 31 1994R. H. Burton Company(assignment on the face of the patent)
Dec 26 2008THE R H BURTON COMPANYTOWA MEDICAL INSTRUMENTS CO , LTD ASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0221270476 pdf
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