Did You Know...
...that in the early 1940s GE engineer James Wright was charged with a task of utmost importance to the war effort: develop a cheap substitute for rubber that could be used to produce tires, gas masks and a whole host of military gear. Wright tackled the task diligently -- and wound up inventing Silly Putty.
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| Number | Title | Issue Date |
| 7294379 | Color changing device for time indicating label and methods of making and using the same The present invention relates to the present invention relates to a time indicating label comprising (a) a label substrate having a first and second surface, (b) an acid-base indicator composition, and (c) an activator composition, wherein one of (b) or (c) are on t... | 11/13/2007 |
| 6275169 | Parking meter A parking meter includes an input device for payment and at least one indicating device for indicating a paid parking time. The indicating device has at least one visual indicator for a corresponding number of parking spaces, wherein an actuating unit wit... | 08/14/2001 |
| 5659306 | Expired parking meter indicator An expired parking meter indicator with electronic components which detect the presence of a vehicle in the parking place. When a vehicle pulls into a parking place a signal is received by the parking meter which after a grace period emits a signal if no ... | 08/19/1997 |
| 5589812 | Personal meter timing device A portable timing device designed for use in conjunction with metered machinery, the device contained within a compact case with a clip on the back side, allowing the device to be fastened to an article of clothing or the like. The case further includes a... | 12/31/1996 |
| 4879553 | Electronic parking time indicator for autovehicles A telecontrol system for a motor-vehicle (1) includes receiver (2) and transmitter (3). The receiver (2) is incorporated in the rearview mirror (4) of a motor-vehicle (1) and includes an electronic digital clock whose display (5) is provided on the back o... | 11/07/1989 |
