Did You Know...
...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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| Application No. | Application Title | Issue Date |
| 20090272000 | Archway measuring device Disclosed is a method and apparatus for drawing an instrument across a curve in a surface for constructing an arch. The apparatus comprises a base member having a pivot and a plurality of first indicators and a slidable member having a plurality of second indicators. Th... | 11/05/2009 |
| 20090178292 | Cut length indicator A distance-transferring device comprising a plurality of interconnected rails. Each rail, when extended, is self-supporting. Once the rails are extended and locked in place between two points, two planes, or one point and one plane, an accurate representation of a dista... | 07/16/2009 |
| 20070101601 | Device "Tool" to "Grade" sewer line/drain lines under crawl spaces "Drop-Shot" tool The invention will simplify Plumbing Rough-In measurements for drop to grade on Building sewer systems within residential homes as well as commercial buildings Where allowed. This tool will enable the Plumber to perform residential sewer System calculations for drops wi... | 05/10/2007 |
| 20070079521 | Measuring tool An improved measuring tool. The improved measuring tool includes a first extensible section hingeably coupled to a second extensible section for rotation between a first position in which the sections are lateral to one another, and a second position in which the sectio... | 04/12/2007 |
