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| Number | Title | Issue Date |
| 4694600 | Indicia display module using light pipe The price display module has a clear plastic light pipe and support member mounted on the back of a bezel to display an indicia on the pre-coiled strip through the bezel aperture and illuminated by light piped through the member from the back light source... | 09/22/1987 |
| 4648189 | Laminated medical data card An internally-illuminated medical data card in a credit card format containing a summary of the medical history of the bearer germane to his existing medical condition. The card, which is of laminated construction, includes a plastic core panel having lig... | 03/10/1987 |
| 4587755 | Portable changeable lighted sign A portable changeable sign is provided. The sign includes a base and a removably attached folded screen element constructed of translucent material. A source of light is disposed within the base to emit light to and through the screen element for illumina... | 05/13/1986 |
| 4559731 | Illuminated sign construction An improved illuminated sign construction utilizing a single source of illumination to back-light a transparency and a surrounding synthetic resinous frame element, the exposed edges of which emit a glow resembling that of a fluorescent tube. The exposed ... | 12/24/1985 |
| 4556932 | Lighted novelty item A battery-powered, self-contained lighted novelty item incorporates a removable face plate. A square, transparent area formed on the center of the face plate is superimposed over a prism shaped lens within the novelty item. An electrical circuit including... | 12/03/1985 |
| 4555694 | Display device for a vehicle A sensor responsive display device includes a common display section for displaying various messages and/or warnings for a given period of time, and plural individual display sections, each corresponding to one of the messages and/or warnings displayed in... | 11/26/1985 |
| 4475298 | Illuminated display assembly An illuminated display assembly comprising a display plate having an illumination source connected thereto wherein a supporting frame and/or shield structure is opaque but includes non-opaque portions defining predetermined words, letters or like indicia.... | 10/09/1984 |
| 4416075 | Illuminated cake decoration A self-containing accessory providing illuminated decoration of a cake or like, comprising, in certain preferred versions, an externally applied decorative cover of eye-defining light-transmissive portions and including a module, secured to the underside ... | 11/22/1983 |
| 4386476 | Edge lighted display sign An edge lighted display sign is disclosed which provides a base portion, defining a housing for a light source and a variable duty cycle oscillator including an exteriorly disposed ratio control device whereby the light source may be controlled from an "o... | 06/07/1983 |
| 4385343 | Edge lighted devices Improved edge lighted devices incorporate one or more light transmitting body assemblies of unique design, resulting in superior performance from both brightness and energy efficiency standpoints. Techniques for obtaining advantageous light transmitting b... | 05/24/1983 |
| 4373282 | Thin-panel illuminator for front-lit displays A device for illuminating a display surface. Light is introduced through an end surface of a transparent substrate having front and back plane parallel opposed surfaces and thereby directed into the interior of the substrate. The back surface is textured ... | 02/15/1983 |
| 4340372 | Educational aid An educational device utilizing light as the displaying medium is provided. The device has a light-impervious housing having a hole in the top and a light source therein. There is a plexiglass panel inside said housing, accessible through the hole in the ... | 07/20/1982 |
| 4285889 | Method for fabricating thin panel illuminator A method for fabricating a thin-panel illuminator for uniform, high contrast lighting of large area graphic displays such as maps, photographs, charts, and the like. Light is introduced through one edge of a transparent substrate having front and back pla... | 08/25/1981 |
| 4255873 | Optic art kit novel extruded frame material An optic art kit is disclosed comprising one or more pieces of a pre-cut frame material (a section of which is constructed with an internal light source), a sheet of abradable material, a one scriber having engraving and abrasive portions, several triangu... | 03/17/1981 |
| 4244130 | Animated display sign A display device includes a hollow base having a slot in its top wall and a bottle simulating transparent shell has its rear opening covered by a plurality of superimposed transparent sheets having relatively vertically staggered, translucent faced dimple... | 01/13/1981 |
| 4232465 | Illuminated display stand A lamp is located in a housing which has a top wall formed of a sheet of light-conducting material, silvered on its internal surface, and having a light emitting hole for internally illuminating a transparent object d'art placed thereon. Light striking th... | 11/11/1980 |
| 4228604 | Biorhythmic device A biorhythmic cycle indicator having three, sine-wave-contoured plates that slidingly overlay a backing plate that has a calendar strip. The plate contours and the calendar register to provide a graphic representation of a person's biorhythmic cycle. The ... | 10/21/1980 |
| 4214391 | Optical numerical segment display An optical display presenting a display field at least one digit in a seven segment arrangement, a stack of seven plate elements for each digit and arranged in a stack, a single light source directing light into the light inlet ends of all of the seven pl... | 07/29/1980 |
| 4163883 | Keyboard with illuminated keys A keyboard for use in an automotive control panel or the like has a pattern of switches on a base and has a key member overlying the switches, the key member having a frame mounting the member relative to the base and having a plurality of keys each compr... | 08/07/1979 |
| 4151582 | Point array sheet lighting apparatus An illumination device for establishing an array of point light sources, wherein the light sources are generally closely spaced. In a first embodiment a planar substrate is provided with an array of apertures. One surface of the substrate is coated with a... | 04/24/1979 |
| 4065865 | Device for visually displaying luminous patterns A multiplicity of preferably coherent light sources are disposed along a common axis and are separated from one another by interposed opaque shields in the form of disks of progressively increasing diameters transverse to that axis. Each source confronts ... | 01/03/1978 |
| 4059916 | Light diffusing device The light diffusing device for illumination purpose includes a light source, a thin transparent base plate having a front illuminating surface and a rear surface and arranged with its side edge adjacent to the light source so as to receive light therefrom... | 11/29/1977 |
| 4058584 | Method for manufacturing luminous hollow bodies for signs or the like A method for manufacturing luminous hollow bodies to be used in signs or the like. The luminous hollow bodies are molded in such a way that first an endless side wall thereof is molded and then an end wall is molded at one end of the space confined by the... | 11/15/1977 |
| 4009535 | Illuminated house number sign A self contained house number sign which charges an internal battery from photo-voltaic cells during daylight. The battery is connected to a lamp via a phototransistor for energizing the lamp at night. The lamp edge lights a plastic template having cutout... | 03/01/1977 |
| 3968584 | Illuminated sign A very thin and rugged illuminated sign has a transparent, light-source plate with cavities in its edges to receive light bulbs. One side of the plate is covered with opaque material and the other with translucent material. Both surfaces are internally re... | 07/13/1976 |
| 3957350 | Device for displaying a laser beam Described herein is a system for producing scattered monochromatic radiat. The system comprises a planar material having surface irregularities which are brightly illuminated by the use of a laser radiation source directed parallel to the planar surface ... | 05/18/1976 |
