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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Coating') ORDER BY date ASC, patent, type

Total of 3 patents found where: Category is 'Coating';

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T / S Patent Date Description Patentee Category Assigned To
U 61,390 January 22, 1867 Improved Compound for Telegraph Insulators, and for Other Purposes
Heating earthenware insulators to 400-500 degrees and dipping into asphaltic compound that has been mixed with sulfur, silicic acid, and silicate of alumina to provide a hard, weather-resistant coating
U 124,201 March 5, 1872 Improvement in Compounds for Insulating Telegraph Wires, etc.
Coating mixture for his patented insulators
FARMER, Moses G.
U 437,685 October 7, 1890 Insulator
Coating on exterior of insulator to color code line
GAYNOR, Thomas F.
Coating The Gaynor Electric Co.

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