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SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (assigned_to = 'The Johns-Pratt Co.') ORDER BY specimen DESC, date, patent, type

Total of 5 patents found where: Assigned To is 'The Johns-Pratt Co.';

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T / S Patent Date Description Patentee Category Assigned To
U Specimen known 578,825 March 16, 1897 Insulator
Composition insulator with top cable clamp
CRANE, William F. D.
Composition The Johns-Pratt Co.
U 482,872 September 20, 1892 Insulator
Strain type
LEE, Charles T.
Strain The Johns-Pratt Co.
U 485,106 October 25, 1892 Insulator
Knob of mica with side groove to hold wire
LEE, Charles T.
Knob The Johns-Pratt Co.
U 904,069 November 17, 1908 Insulator
Strain insulator to electrically disconnect the circuit. (see reissue 13,526)
KEMPTON, Williard H.
Strain The Johns-Pratt Co.
R 13,526 February 11, 1913 Insulator
Reissue of patent 904,069. Strain insulator to electrically disconnect the circuit.
KEMPTON, Willard H.
Strain The Johns-Pratt Co.

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