|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '427') AND (category.subclass = '126.2') ORDER BY date ASC, patent, type|
Total of 4 patents found where: Class is '427'; Subclass is '126.2';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||2,154,387||April 11, 1939||Electric Insulator
RFI: coat crown with metallic glaze to prevent radio interference (advertised in Electrical World 8-12-1939)
|SLEEMAN, Harold P.
||RFI||The R. Thomas & Sons Co.|
|U||2,264,152||November 25, 1941||Method of Forming a Metallic Surface on Ceramic Bodies
RFI metallic coating that strongly adheres to the insulator
|ROWLAND, Davidge H.
||RFI||Locke Insulator Corp.|
|U||2,953,483||September 20, 1960||Method and Apparatus for Applying Coatings to Selected Areas of Articles
Radio treatment process for CD 239
|TOROK, Julius J.
||RFI||Owens-Illinois Glass Co.|
|U||3,658,583||April 25, 1972||Method for Producing Semi-Conducting Glaze Compositions for Electric Insulators
RFI semi-conductive glaze formulas
||RFI||NGK Insulators, Ltd.|
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