The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 18, 1978
Filed:
Feb. 28, 1977
Vladimir Ivanovich Farafontov, Leningrad, SU;
Yaroslav Alexeevich Kalashnikov, Moscow, SU;
Jury Nikolaevich Novikov, Moscow, SU;
Mark Efimovich Volpin, Moscow, SU;
Leonid Fedorovich Vereschagin, Moscow, SU;
Vladislav Sergeevich Lysanov, Leningrad, SU;
Other;
Abstract
A process for producing synthetic diamonds which comprises the synthesis of diamonds from a charge consisting of graphite or a carbonaceous material capable of being graphitized and a catalyst; as the latter use is made of a metalgraphite laminar compound of a transition metal, wherein said metal is interposed between the graphite layers and chemically bonded therewith. Said catalyst makes it possible to shorten the duration of the synthesis down to several seconds and carry-out the synthesis at a temperature of below 1,200.degree. C. The resulting diamond crystals are colorless and transparent.