U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...that after Parker Brothers executives turned down the game of Monopoly because it had "52 fundamental errors" (including taking too long to play), a copy of the game wound up in the home of the company president who stayed up until 1 a.m. to finish playing it? He was so impressed by the game that the next day he wrote to inventor Charles Darrow and offered to buy it!

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Class 235/74 - Disk


Subclass of Class 235 - Registers
Definition: Calculating-machines whose registering attachments comprise
No. of patents: 9
Last issue date: 07/15/2008


NumberTitleIssue Date
7400715Prepaid telephone calling card with distinct PIN numbers
A prepaid long-distance telephone calling card has two or more distinct PIN numbers each obscured by opaque scratch-off material. Each PIN number is associated with prepaid value. A user can scratch off the opaque material for PIN numbers one by one, and the value f...
07/15/2008
7337946Device for resolving interpersonal relationship issues
A device for resolving interpersonal relationship issues comprising: (a) a plurality of text sheets comprised of flexible, transparent material; (b) a rigid front cover; and (c) a rigid back cover; wherein each text sheet comprises an opaque band bearing text on eit...
03/04/2008
7246730Smart hanger system
A moisture resistant rustproof smart hanger system provides a set of plastic spindles or thumb wheels permanently attached to a hanger. The spindles are designed to record, for a particular garment, the last cleaned date, the number of times worn, and the last worn ...
07/24/2007
6983887Promotional apparatus for calculating characteristics of subjects using two input variables
An apparatus for determining a characteristic, such as body mass index number, for a person includes a housing having a panel with an edge portion, an intermediate portion, and a window formed in the intermediate portion. A member is movably secured to the housing a...
01/10/2006
6655578Instrument for computing proportions of an original recipe
A hand-held instrument for calculating the measurements necessary to prepare any number of servings or serving sizes from a printed food recipe which utilizes two concentric rotating wheels, the lower one of the wheels having instructions printed thereon ...
12/02/2003
6648219Hand held pipe bending calculator
A mechanical annular hand held pipe bend calculator that enables a worker to calculate the angle of bend necessary for pipe given the distance between bends and the depth of offset or saddle; or to calculate the depth of offset or saddle, if given the ang...
11/18/2003
6000725Lottery ticket and method of playing a lottery game
A lottery ticket includes an upper edge, a lower edge, opposite side edges, and a first area located adjacent the upper edge, the first area having a first set of gaming indicia disposed thereon that form lower portions of prize symbols. A second area is ...
12/14/1999
4450615Method of fabricating a hand calculator
A method of fabricating a hand calculator utilizing die press punching to form its three parts. A circular stationary base plate is punched with a central, circular, raised, beveled portion which is then rigidly fixed to a circular stationary top plate by...
05/29/1984
4059952Bio-rhythm calculator
A calculator for continuously exhibiting the status of an individual's Bio-Rhythm cycles and, in particular, an individual's physical, emotional and intellectual Bio-Rhythm cycles. The calculator comprises a display panel having three dial faces correspon...
11/29/1977
 
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