Progressive lens for specialty and occupational use

United States of America Patent

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Jul 5, 1994
Grant Date
N/A
app pub date
Jan 12, 1993
filing date
Jan 12, 1993

priority date (Note)
Expired

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Abstract

A progressive addition lens constructed on the bipolar principle in accordance with a power law having a steeper slope or gradient in the regions adjacent to the poles than in the middle region thereof between the poles.

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Patent Owner(s)

Patent Owner	Address
GENTEX OPTICS INC	324 MAIN STREET CARBONDALE PA 18407

International Classification(s)

G02C:SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY ....

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Waido, Richard P	West Woodstock, CT	4	102

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Progressive lens for specialty and occupational use

Number of patents in Portfolio can not be more than 2000

United States of America Patent

08003391

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PATENT NO	5327181
SERIAL NO	08003391
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08003391

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