Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 4490432 | Reinforced pavement-marking sheet material Pavement-marking sheet material which comprises a non-crosslinked elastomeric precursor such as acrylonitrile-butadiene polymer; a thermoplastic polymer such as polyethylene which reinforces the sheet material, e.g., by orientation of the thermoplastic po... | 12/25/1984 |
| 4443510 | Conformable removable reflective marking tape A multilayer reflective tape for use on roadways to provide temporary marking and demarcation of traffic lanes is disclosed. The tape has a thin malleable strip of aluminum, the top of which is coated with a high visibility paint in which reflective glass... | 04/17/1984 |
| 4428320 | Reflective paving marker An inexpensive reflective paving marker, which may be used to delineate traffic lanes in construction zones, and is especially useful at night and during wet conditions, has a light weight molded plastic support structure and a reflective element composed... | 01/31/1984 |
| 4303305 | Reflex reflector device The reflectivity of a reflex reflector device comprising a reflex reflector element having corner cube reflecting elements on a rear surface thereof is improved, particularly at high entrance angles, by the provision of a second reflex reflector element b... | 12/01/1981 |
| 4299874 | Removable pavement-marking sheet material Removable pavement-marking sheet material incorporates a stretchable porous fibrous web, such as a nonwoven web of randomly distributed fibers, preferably embedded in a pressure-sensitive adhesive layer carried on a backing. The fibrous web comprises clos... | 11/10/1981 |
| 4284365 | Reflective lane marker for roadways This invention describes a reflective lane marker for roads which is mounted so that the upper surface of the marker is flush with the road surface. It is so arranged as to reflect light from headlights back in the same general direction from which it com... | 08/18/1981 |
| 4252409 | Warning reflector A warning reflector construction is provided comprising a transparent plate having a rear surface opposite a light-entrance surface. The rear surface comprises toric surfaces arranged side-by-side and supporting an outermost reflective layer. The optical ... | 02/24/1981 |
| 4245888 | Universal warning strip The device is designed for attaching on the rear parts of automotive vehicles and serves, especially during the night, for visual informing of drivers about the presence, the distance, the width and the length of a preceding vehicle. The device consists o... | 01/20/1981 |
| 4236788 | Direction-indicating surface marker strip for roadways and the like This disclosure is concerned with providing a marker strip for attachment to roadways and other surfaces, comprising an upper layer of spaced transverse prisms and a lower layer of retroreflective sheeting, providing direction color discrimination, where ... | 12/02/1980 |
| 4236950 | Road marking machine and method A compound machine for mechanically forming traffic dividing and regulating lines on a roadway pavement, comprising a motor driven vehicle adapted to travel along a desired direction on said pavement, the machine being implemented by a first apparatus sup... | 12/02/1980 |
| 4231830 | Process for preparing reflecting sheeting having wide angle response A reflective sheeting is disclosed having spaced apart cavities extending along one face and light-reflecting beads lining both wall and bottom portions of the cavities to impart a wide angle retroreflective response to incident light and improved brightn... | 11/04/1980 |
| 4208090 | Reflector structure There is disclosed a reflector structure that is highly visible both in daylight and at night, the structure including a body of transparent material having a front face and a rear face, the rear face including a continuous support surface having therein ... | 06/17/1980 |
| 4203878 | Epoxy resin traffic paint compositions Rapid-drying, one-package, epoxy traffic paint composition comprises (1) an adduct of an epoxy resin and a polymerized fatty acid, (2) a thermoplastic resin and (3) one or more pigments.... | 05/20/1980 |
| 4191449 | Guard-rail reflector A guard-rail reflector having two reflecting planes positioned oliquely with each other, a bottom plane for connecting the reflecting planes together, one of the reflecting planes being inclined at 75°&#b1;15° with respect to the bottom plane, and the o... | 03/04/1980 |
| 4189209 | Retroreflector of integrated light reflecting units of varying configurations A retroreflector and a process for preparing it are disclosed characterized in that the retroreflector has a retroreflecting area consisting of rows of integrated, trihedral, light-reflecting units of varying geometric configurations which are so arranged... | 02/19/1980 |
| 4148561 | Method for producing improved retroreflective system for sign surfaces, and improved systems produced thereby A light retroreflective system essentially of the kind described in the U.S. Pat. No. 3,981,557, comprising a primary focusing transparent body having elliptical sections in planes perpendicular to a rotary symmetry axis of such body, and an equatorial zo... | 04/10/1979 |
| 4146635 | Anti-skid, wear- and stress-resisting road marking tape material An improved multi-layer surface marking tape material for use on roadway pavements so as to provide a traffic regulating indicium thereon, and having an anti-skid and wear-resisting upper layer and a lower primer layer for connecting the material to said ... | 03/27/1979 |
| 4145112 | Low-profile raised retroreflective sheeting Low-profile raised retroreflective sheeting useful for retroreflecting light that strikes the sheeting at a high incidence angle comprises a base retroreflective layer and a light-directing layer disposed above the base retroreflective layer. The light-di... | 03/20/1979 |
| 4129397 | Road surface marking prefabricated tape material, having retroreflective composite elements associated thereto A prefabricated road surface marking tape material consisting of a factory prefabricated and assembled structure comprising a tape component and a plurality of retroreflective sheltered elements bulging above said tape, spacedly distributed lengthwise of ... | 12/12/1978 |
| 4080085 | Traffic lane delineator system A system for providing internally illuminated traffic lane delineators is disclosed. This system includes a delineator device adapted for use with a traffic lane marking film comprising a flexible and pliable polymeric material exhibiting cold flow and re... | 03/21/1978 |
| 4076383 | Multi-sided retroreflector A multi-sided retroreflective body is disclosed having at least two retroreflective faces adapted to intercept light. Each reflective face is tilted in the same general direction about a lower portion angularly away from a vertical plane and is angularly ... | 02/28/1978 |
| 4070095 | Pavement marker and reflector assembly A pavement marker including a body having a base for engagement with the surface of a roadway, and a reflector assembly mounted on the body for reflecting light from vehicles on the roadway when the fore-and-aft axis of the body is disposed in parallel re... | 01/24/1978 |
| 4069787 | Direction-indicating surface marker and the like A distinctively and unambiguously marking of the directions of travel on motoring highways, airports and other surfaces with the aid of a thin novel saw-tooth marker strip that is adhered to the traveling surface and has distinctively colored successive s... | 01/24/1978 |
| 4069281 | Prefabricated roadway marking strip material and method for producing same A method of producing a prefabricated roadway marking strip material adapted to be applied on and secured to selected areas of a prepared roadway pavement so as to form thereon a traffic regulating indicium comprised of defined signalling surfaces having ... | 01/17/1978 |
| 4040760 | Direction-indicating surface marking apparatus for roadways and the like This disclosure is concerned with distinctively and unambiguously marking the directions of travel on motoring highways, airports and other surfaces with the aid of a thin novel saw-tooth marker strip that is adhered to the traveling surface and has disti... | 08/09/1977 |
| 4020211 | Anti-skid and wear resistant road surface marking material The disclosure describes a new material adapted to be laid down and adhesively secured on a road surface to provide a traffic regulating sign thereon, the material having an upper surface exposed to traffic and provided with a plurality of sharp tips proj... | 04/26/1977 |
| 4012114 | High efficiency reflecting system, and method There is described an optical system suitable for use on highway pavements or marking indicia for ensuring nighttime visibility, and consisting of a transparent sphere, a transparent layer of a binding medium having a refractive index different from that ... | 03/15/1977 |
| 3998645 | Thermoplastic traffic paint A thermoplastic traffic paint containing as a pigment, 4,4'-bis[acetoacet-(2",5"-dimethoxy-4"-chloro)anilido-2-azo]-3,3'-dichloro diphenyl.... | 12/21/1976 |
| 3996556 | Light emitting marker for roadway pavements, for traffic safety A traffic safety aid consists of a prefabricated essentially flexible marking tape material which is adapted to be laid on and adhesively secured to a roadway surface, at predetermined locations which are to be detected and identified at a distance by a d... | 12/07/1976 |
| 3936207 | Highway color code marking The course to be followed by a motorist having a preselected destination is indicated by a plurality of markers set in the center of the path to be followed by the motorist, each set of markers having a different color to correspond to a different presele... | 02/03/1976 |
