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Publication numberUSD91239 S
Publication typeGrant
Publication dateDec 26, 1933
Filing dateOct 10, 1933
Publication numberUS D91239 S, US D91239S, US-S-D91239, USD91239 S, USD91239S
InventorsOtto G. Haussmann
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Design for a qtjin-focal ophthalmic
US D91239 S
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

Dec. 26, 1933. o. G. HAUSSMANN Des. 91,239

QUIN FOCAL OPHTHALMIC LENS Filed Oct. 10, 1933 gmwwbot OTTO G. HAuss MANN Patented Dec. 26, 1933 UNITED STATES Des. 91,239

PATENT OFFICE DESIGN FOR A QUINFSOCAL OPHTHALMIC LEN Otto G. Haussmann, Philadelphia, Pa.

Application October 10, 1933. Serial No. 49,447

Term of patent 7 years figuration on the surface of the lens in the drawing represent the boundaries of fields of different focal power in an altogether transparent medium, made visible solely by the contrast in the bending of the light rays passing through the several fields.

I claim:

The ornamental design for a quin-focal ophthalmic lens as shown and described.

OTTO G. HAUSSMANN.

Referenced by
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US6488374Feb 12, 2002Dec 3, 2002Davida Charlene AlbertsEyeglasses and method of making same for the treatment of low-vision
US6709104Oct 16, 2002Mar 23, 2004Davida Charlene AlbertsEyeglasses and method of making same for the treatment of low-vision