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In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7547051 | Locking system for grade level enclosures A locking system for closing and locking a lid on an enclosure such as a grade level enclosure. The locking system includes a latch formed on an edge of a lid of the enclosure. The latch includes a bolt recess on an upper face of the lid which opens into a slotted w... | 06/16/2009 |
| 7007986 | Access cover fastening device A hollow aluminum pole has access to its interior through a hand hole frame having an access aperture which can be blocked by a cover having a lower end pivotally attached to the hand hole frame by a pivot pin. The pivot pin is biased inwardly by a coil spring which... | 03/07/2006 |
| 6908124 | Catch device for a pivoting window The device is suitable for a vehicle window and comprises a first attachment member for fixing to the window, an elongate handle articulated to the first attachment member, a second attachment member for fixing to the vehicle bodywork, and a connecting link connecti... | 06/21/2005 |
| 6471310 | Circuit board retaining assembly A circuit board retaining assembly for coupling a component to a chassis without concern for the loss of mounting hardware, such as for coupling computer hardware to a computer chassis, and for doing so particularly when the component is in operation. The... | 10/29/2002 |
| 5078437 | Transformer having an integral cabinet with door latching and locking apparatus An electrical transformer having an integral cabinet with an apparatus for latching and locking the doors of the cabinet. The apparatus is comprised of a three point latch system. The first and second latch points are vertical latch rods which engage sill... | 01/07/1992 |
| 4635977 | Door handle device unlockable from indoor side A door handle device unlockable from indoor side of refrigerators, which device enables a person trapped in a refrigerator by accident to escape therefrom speedily by a simple operation. This handle device comprises a handle unit fastened to a door, and a... | 01/13/1987 |
| 4418951 | Rotary latch for screen door This invention relates to a rotary type latch for sliding screen doors wherein the rotary member is molded from a plastic material such as a polycarbonate and which is rotatable in either direction for universal application to either right hand or left ha... | 12/06/1983 |
| 4099754 | Door security guard A door security latch is disclosed including a link member pivotably attached to the door frame on the inside of the door and which is swingable to a position overlapping the inside face of the door. The link carries a threaded stop having a door face eng... | 07/11/1978 |
| 4078835 | Firm closure and locking device for vent windows A firm closure and locking device to firmly close and lock a vent window pivotally mounted and adjacent to a rigid member. The device has a body portion configured in a U-shape which fits over the edge of the vent window adjacent to the rigid member. A lo... | 03/14/1978 |
| 4078843 | Handle construction A door and handle latch for apparatus enclosures includes a recessed handle latch on the door which serves to immovably secure the door to the enclosure structure by engaging a portion of the enclosure when the handle latch is in the closed position. A bo... | 03/14/1978 |
| 4068875 | Security latch for sliding doors A latch for sliding doors, having a first plate fixed to the heel of one of the doors and a second plate hingedly attached to the end of the second plate. When the plates are folded together, they are parallel. When the plates are folded at right angles t... | 01/17/1978 |
