Transparent measuring device with enhanced visibility lines

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 6839971
APP PUB NO 20040088870A1
SERIAL NO

10623126

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A transparent measuring device with enhanced visibility lines formed on a transparent substrate having opposing planar front and back surfaces and with at least one opaque line formed on one of the front and back surfaces and at least one transparent line formed on one of the front and back surfaces to be colinear with the at least one opaque line to present a composite line where the transparent line permits viewing of material on which the device is placed while highlighting the at least one opaque line for enhanced visibility. The transparent line may be formed of excitable pigment that reacts to light, such as a black light, or that retains luminance after exposure to light.

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First Claim

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Patent Owner(s)

Patent OwnerAddress
RULERSMITH IP INC3809 STONE WAY NORTH #130 SEATTLE WA 98103-8036

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Schafer, Margaret c/o Rulersmith Inc. P.O. Box 253, Burlington, WA 98233 2 36
Schafer, Randal D late of Burlington, WA 9 216

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