US Patent 7691321 Thermic lance
Patent 7691321 was granted and assigned to AIR PRODUCTS AND CHEMICALS, INC. on April, 2010 by the United States Patent and Trademark Office.
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Patent abstract
The present invention relates to use of a thermic lance as a firework. Frictional or electrical ignition of a thermic lance is more convenient and safer than conventional methods. In addition, when used as a firework, the lance is safer and provides less pollution than conventional fireworks.
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Patent Inventor Names
Neil Downie0
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US Patent 07691321 Thermic lance US Patent 7691321 Thermic lance
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Patent Number
07691321
Patent Number
7691321
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Official Website
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US Patent 07691321 Thermic lance
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Is a
Current assignee
Patent jurisdiction
Patent number
07691321
Date of patent
April 6, 2010
Patent application number
11732973
Date Filed
April 5, 2007
Patent primary examiner
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