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US 5,309,279 AGranted
Script view a curved convex magnifying device
OwnerMadeline C. Halsteadinventor
Life of this patent
Estimating the term…
Abstract
An optical instrument for magnifying printed or written material on three dimensional round or oval containers or objects. The instrument is an arced convex lens which provides distortion free magnification of multiple lines of text inscribed around the circumference or perimeter of vials, bottles, or other curved objects, while staying self affixed. The instrument is simply slid up or down, if required, to magnify the chosen text.
Claims2
An instrument for magnifying lines of text printed on a container, said instrument comprising:
- a lens means for magnifying said lines of text, said lens means having a shape of an open ring, said open ring having a convex outer surface and a flat inner surface curved inward, and having lead-ins notched into said inner surface and
- means for releasably attaching said instrument to said container.
Dependencies are inferred from the claim text.