...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7625441 | Paper coating formulation having a reduced level of binder Paper coating formulations having a reduced level of binder and processes for their manufacture are disclosed. Specifically, the paper coating formulations comprise a paper coating pigment and a binder. The binder comprises a strongly associated adhesive material th... | 12/01/2009 |
| 7276112 | Aqueous ink, ink-jet recording method, ink cartridge, recording unit, ink-jet recording apparatus and image forming method Disclosed is an aqueous ink comprising at least water, a plurality of water-soluble organic solvents and a coloring material. The coloring material is a pigment, and, it contains a pigment particle having at least one ionic group bonded to a surface of the pigment p... | 10/02/2007 |
| 6660345 | Thermochromic liquid crystalline medium The invention relates to a thermochromic liquid crystalline medium comprising a liquid crystalline host component and an active component, to a thermochromic ink comprising such a thermochromic liquid crystalline medium encapsulated in a light transmissiv... | 12/09/2003 |
| 6596519 | Paint or ink composition The present invention provides a modifying agent for resins for paints or resins for inks, containing fatty acids obtained by the enzymatic decomposition of vegetable oils or fats, the resins for paints or resins for inks modified with the modifying agent... | 07/22/2003 |
| 6261348 | Laser markable coating The present invention provides a transparent or colorless coating comprising a heat responsive material that increases in opacity when exposed to heat. An example of a heat responsive material is a silicate or a titanate. The present invention further pro... | 07/17/2001 |
| 6074705 | Applicator and method for temporarily masking stains on clothing An applicator for temporarily masking stains on clothing includes a canister having an chamber for containing fluid, a water based, stain masking solution disposed within the chamber of the canister, and a brush or a spray head applying the stain masking ... | 06/13/2000 |
| 5972085 | Printed article and method The present invention relates to the use of shellac as the binder in an ink composition to reduce the problems of sweating when the ink is applied to a soft gelatin surface. Preferably, the shellac is at leat partially neutralised by a volatile base, for ... | 10/26/1999 |
| 5762696 | Terpene dimer varnish and ink formulations and related methods of manufacture An ink vehicle composition is provided comprising a polymeric type resin binder component and a terpene dimer oil. In an alternate embodiment the compositions further include an additional oil selected from linseed oil, soya bean oil, tung oil, or other o... | 06/09/1998 |
| 5716434 | Non-erasable pencil lead Provided is a non-erasable pencil lead for a natural pencil and a mechanical pencil, characterized in that the pores of a baked pencil lead are impregnated with an unsaturated compound containing an unsaturated group having an iodine value of at least 130... | 02/10/1998 |
| 5702513 | Correction and marking materials A hand-held correction or marking material (20) comprises a solid synthetic matrix (26) containing a correction or marking material. The matrix is such that when it is drawn over and in contact with a paper or similar surface, it deposits thereon as a thi... | 12/30/1997 |
| 5340386 | Silicone containing artists' media A method of making a drawing media which can be applied to a substrate in which the drawing media is prepared by mixing together a pigment a binder, and an organosilicon compound. The organosilicon compound is a volatile low viscosity methylsilicone fluid... | 08/23/1994 |
| 4859242 | Water soluble coloring compositions containing sparkle components Water soluble coloring compositions are provided that contain a stable and uniform suspension of color and sparkle or glitter components. The process for producing the coloring compositions employs a lower temperature range than the prior art; this reduce... | 08/22/1989 |
| 4525214 | Crayon adapted for development of latent images A latent image development system comprising a substrate having a latent image thereon and an instrument for dispensing a color developing agent over the image. The image contains a carboxylic or organic sulfonic acid salt of zinc, mercury, copper, iron, ... | 06/25/1985 |
| 4246032 | Process for controlling the position of fibrous webs A process for controlling the position of fibrous webs to be printed by applying thereon a ferromagnetic printing paste in the form of very small dots which are not visible or palpable, which paste consists of at least 85% by weight, based on the total so... | 01/20/1981 |