...that on Dec. 15, 1836, the Patent Office was completely destroyed by fire? Lost were some 7,000 models, 9,000 drawings, and 230 books plus all records of patent applications and grants.
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| Number | Title | Issue Date |
| D649015 | Metal fitting for building boards | 11/22/2011 |
| 6850636 | Surface inspection system An inspection system which enables even the production control section located at a remote place to trace and inspect the changing process of the external appearance, after undergoing through each manufacturing process, of a great number of work boards that have bee... | 02/01/2005 |
| 6830405 | Fastening member A fastening member which is designed to receive a downwardly directed component force on the occasion of fixing it to a post or a stud of a building frame, thereby preventing it from being inadvertently floated up, thus ensuring always a stably fastened state of the... | 12/14/2004 |
| 6779577 | Building boards, manufacturing apparatus and prefoamed plastics A building board comprising a cement substrate, a top coated layer formed on the front surface of the substrate, and a plastic sheet formed on the back surface of the substrate. The plastic sheet should preferably be formed of a polyethylene sheet. Since the impregn... | 08/24/2004 |
| 6757006 | Moving trouble monitoring system and recording medium A monitoring system for watching moving trouble of work boards, which is capable of informing of trouble of boards immediately after trouble occurs in the continuous production line, and capable of displaying a monitored picture which is modified into a special pict... | 06/29/2004 |
| 6740423 | Colored building boards, manufacturing methods thereof There is provided a building board which is colored by mixture of a pigment(s) into the raw materials and exhibiting an excellent color development effect. A pigment and a resin(s) are incorporated into the raw materials of the front layer to form a resin film simul... | 05/25/2004 |
| 6688060 | Joiner for vertical joint for external wall members A joiner for vertical joint which is adapted to be placed at a vertical joint formed between end faces of a couple of neighboring external wall members. This joiner is designed such that the adhesive force between the sealing material and the surface regi... | 02/10/2004 |
| 6688725 | Building board printing apparatus The present invention dispenses with a plate for printing using an ink jet technology and provides a building board printing apparatus which is ready for a small-lots & multi-products manufactured systems. Each of printing heads 1, . . . M, . . . N compri... | 02/10/2004 |
| 6679010 | Overhanging member There is provided an overhanging member which is capable of improving the external design, and also capable of effectively performing the ventilation and drainage of the overhanging portion of building. This overhanging member comprises a flat vertical mo... | 01/20/2004 |
| 6666244 | Building board and manufacturing method thereof A building board which is provided on the surface thereof with a concave and convex pattern, and opposite sides thereof with overlying rabbeted portions (2-1, 6-1, 6-2) and underlying rabbeted portions (3-1, 3-2, 5-1), respectively, wherein each overlying... | 12/23/2003 |
| 6655432 | Building boards, manufacturing apparatus of the same A building board 1 which comprises a cement substrate 14, a front surface coat layer 5 formed on the front surface of the cement substrate 14, and a plastic sheet layer, preferably a polyethylene sheet layer 15 formed on the back surface 12 of the cement ... | 12/02/2003 |
| 6578334 | Building board and manufacturing method thereof A building board which is provided on the surface thereof with a concave and convex pattern, and opposite sides thereof with overlying rabbeted portions (2-1, 6-1, 6-2) and underlying rabbeted portions (3-1, 3-2, 5-1), respectively, wherein each overlying... | 06/17/2003 |
| 6413616 | Building board and method and apparatus for coating building board An aesthetically enhanced building board is disclosed which is obtained by applying an effective shade coating to concavities of a building board having linear, curved, continuous or discontinuous concavities or any other concavities. In accordance with a... | 07/02/2002 |
| 5945044 | Wood cement board and a manufacturing method thereof A wood cement board substantially consisting of reinforcing wood material and a cement wherein said reinforcing wood material is treated by a method comprising attaching an aqueous solution of a mineral acid and adding and mixing an alkaline metal silicat... | 08/31/1999 |
| 5924256 | Mounting structure for external wallboard In mounting an external wallboard formed from a material containing cement, a plurality of spacers are adhered to a plurality of wall backings each formed of steel or wood, respectively. Each spacer has through holes or concavities. The external wallboard... | 07/20/1999 |
| 5863477 | Method of manufacturing a wood-cement board A wood-cement board is manufactured by a method comprising mixing 30 to 40% by weight of cement material, 20 to 27% by weight of wood flake, and 30 to 40% by weight of fly ash to prepare a raw material mixture, strewing said raw material mixture on a mold... | 01/26/1999 |
| 5804003 | Method of manufacturing an inorganic board The object of the present invention is to prevent delamination of an inorganic board. To attain this object, a method of manufacturing an inorganic board comprising forming a single mat by the paper making method by using slurry of raw material mixture su... | 09/08/1998 |
| 5707689 | Method of painting building boards In a method of painting a building board by a computer-controlled painting machine so that colored paint patterns are formed on a surface of the building board, data is previously set regarding a colored paint pattern to be applied to a peripheral portion... | 01/13/1998 |
| 5683753 | Method of painting building boards A method of painting building boards includes the steps of conveying each of a plurality of building boards on a conveyor in turn to a painting position, injecting paint from a plurality of injection nozzles arranged over the painting position when the bu... | 11/04/1997 |
| 5681428 | Method of manufacturing an inorganic board An inorganic board consisting of a cured base mat and a cured surface mat is manufactured by forming a surface mat by the dry method on a base mat formed by a paper making method, embossing the composite mat, and curing the embossed composite mat. Ridges ... | 10/28/1997 |
| 5672310 | Method of manufacturing wood-cement board A method of manufacturing wood-cement board and an apparatus used in the method are provided in the present invention. The method of manufacturing wood-cement board comprising strewing a raw materials mixture of wood-cement board on a mold panel to form a... | 09/30/1997 |
| 5662968 | Method of painting building board by spray painting apparatus In a method of painting a building board being conveyed on a conveyor by means of a spray painting apparatus so that a plurality of colors of gradated or shaded patterns are formed, a plurality of spray guns are connected to a plurality of paint supply sy... | 09/02/1997 |
| 5584240 | Embossing apparatus for inorganic board and method of embossing thereby An embossing apparatus for inorganic board and the method of embossing thereby are provided in the present invention. In the present invention, an uncured mat of inorganic board set on a lower fixed plate is embossed by a flexible mold plate of a upper mo... | 12/17/1996 |
| 5188889 | Inorganic board and method of manufacture thereof An inorganic board having excellent dimensional stability and excellent insulating properties comprises a pair of surface layers consisting of a hardened mixture of 30 to 60% by weight of cement, 30 to 60% by weight of a silica-containing material, 0 to 1... | 02/23/1993 |