Method for making carbon nanotubes
Patent 5753088 Issued on May 19, 1998. Estimated Expiration Date: 
February 18, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 18, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElectric arc process for making fullerenes Method and device for the production of carbon nanotubes Apparatus for reactions in dense-medium plasmas Fullerene composite Patent #: 5648056 InventorAssigneeApplicationNo. 801675 filed on 02/18/1997US Classes:204/173, Carbon423/445B, Fullerene (e.g., C60, C70, etc.)423/445RElemental carbonExaminersPrimary: Gorgos, KathrynAssistant: Mayekar, Kishor Attorney, Agent or FirmInternational ClassC01B 031/00AbstractCarbon nanotubes are produced by submerging carbonaceous anode and cathode electrodes in liquid nitrogen or other suitable liquefied materials such as helium or hydrogen, and passing a direct current between the electrodes to strike a plasma arc between the anode and cathode that erodes carbon from the anode and deposits carbon nanotubes on the surface of the cathode.Other References
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