C04B35/00- Shaped ceramic products characterised by their composition Ceramics compositions Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products.MORTARS, CONCRETE OR LIKE BUILDING MATERIALS ARTIFICIAL STONE CERAMICS REFRACTORIES TREATMENT OF NATURAL STONE C04B- LIME, MAGNESIA SLAG CEMENTS COMPOSITIONS THEREOF, e.g.C04- CEMENTS CONCRETE ARTIFICIAL STONE CERAMICS REFRACTORIES. D21H13/00- Pulp or paper, comprising synthetic cellulose or non-cellulose fibres or web-forming material.D21H- PULP COMPOSITIONS PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D IMPREGNATING OR COATING OF PAPER TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G PAPER NOT OTHERWISE PROVIDED FOR.D21- PAPER-MAKING PRODUCTION OF CELLULOSE.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by Kureha Corp, Toyobo Co Ltd filed Critical Kureha Corp Application granted granted Critical Publication of US3998689A publication Critical patent/US3998689A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links Original Assignee Kureha Corp Toyobo Co Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US05/485,606 Inventor Teruaki Kitago Tadaaki Yoshida Current Assignee (The listed assignees may be inaccurate. Google Patents Process for the production of carbon fiber paperĭownload PDF Info Publication number US3998689A US3998689A US05/485,606 US48560674A US3998689A US 3998689 A US3998689 A US 3998689A US 48560674 A US48560674 A US 48560674A US 3998689 A US3998689 A US 3998689A Authority US United States Prior art keywords weight fibers sheet organic pulp Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US3998689A - Process for the production of carbon fiber paper On January 27, 1880, Edison received the historic patent embodying the principles of his incandescent lamp that paved the way for the universal domestic use of electric light. The patent number for his electric lamp is 223,898.US3998689A - Process for the production of carbon fiber paper With unflagging determination, Edison and his team tried out thousands of theories, convinced that every failure brought them one step closer to success. With dreams of lighting up entire cites, Edison lined up financial backing, assembled a group of brilliant scientists and technicians, and applied his genius to the challenge of creating an effective and affordable electric lamp. In 1878, the creation of a practical long-burning electric light had eluded scientists for decades. His thundering dynamos transformed the United States into the world’s greatest industrial superpower. Three of his most famous inventions, the phonograph, a practical incandescent light bulb, and the moving picture camera, dazzled the public and revolutionized the way people live throughout the world. Out of his New Jersey laboratories, which were themselves inventions – thoroughly equipped and fully staffed – came 1,093 patented inventions and innovations that made Edison one of the most prolific inventors of all time. From the time he was a boy, he was mesmerized by the mechanics of the universe and, with virtually no formal education, brought forth innovations that continue to dominate our lives. The Patent Office granted Thomas Edison a patent for his "electric-lamp." Edison's patent was an improvement on electric lamps, not the invention of them but because of Edison’s design changes and the materials he used-such as a carbon filament-his patent allowed for an electric lamp that was reliable, safe, and practical.Įdison propelled the United States out of the gaslight era and into the electric age.
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