U.S. patents available from 1976 to present.
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...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!

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Class 400/508 - Including spool or support for roll of carbon paper


Subclass of Class 400 - Typewriting machines
Definition: Subject matter wherein said carbon paper is in the form
No. of patents: 3
Last issue date: 01/16/1990


NumberTitleIssue Date
4893953Printer for normal line feed by a carriage return
Disclosed is a printer having memory means for storing the vertical print position movement data so as to print a super-script or sub-script character. When the carriage is returned after printing in a nonstandard row position, the print position is moved...
01/16/1990
4572686Apparatus for making labels
An apparatus for forming labels from paper that has a label forming layer and a transfer carbon layer. The label layer has marks thereon having a known relationship to the intended edges of the label. A photoelectric detector activates a label cutting mec...
02/25/1986
3952122Printing paper with a leader element attached to the end thereof
The present invention has for its object a device for loading paper in a printing machine. The printing paper formed by a strip of white paper and a strip of carbon paper wound together bears a lead-in end made of thin cardboard, preferentially having the...
04/20/1976
 
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