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...that the inventor of the electric motor was a blacksmith named Thomas Davenport? Described as "a brilliantly unsuccessful inventor", Davenport invented the first rotary electric motor. In 1836 he headed out -- on foot -- from his Vermont home to file a patent application at the Patent Office in Washington, D.C. By the time he got there, he had squandered away his money and couldn't afford the $30 filing fee so he turned around and went home. When he later mailed in his application with money he'd raised, the Patent office was destroyed in a fire. He did finally get credit for his invention on Feb. 5, 1837.

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Class 71/42 - Alkaline treatment


Subclass of Class 71 - Chemistry: fertilizers
Definition: Methods of preparing phosphate containing fertilizers wherein
No. of applications: 3
Last issue date: 12/08/2011


Application No.Application TitleIssue Date
20110296885COMPOSITIONS FOR SUSTAINED RELEASE OF AGRICULTURAL MACRONUTRIENTS AND PROCESS THEREOF
A macronutrient sustained release composition for a plant locus containing a nanocomposite wherein a nitrogen containing macronutrient compound adsorbed on the surface of hydroxy apatite phosphate nanoparticles is intercalated within the interlayer spacing of a nanoclay...
12/08/2011
20100311584PREPARATION OF A POTASSIUM PHOSPHATE BASED COMPOSITION
Provided is a freely flowing particulate fertilizer essentially consisting of potassium phosphate of the formula K3H3(PO4)2 and of less than 8 wt % water. The stable and not caking fertilizer is characterized by an XRD signal ...
12/09/2010
20100206032Process for the Manufacture of Bio-release Fertilizers of Zinc-iron-manganese, Iron-manganese-copper and Zinc-iron-manganese-copper
A process for the preparation of water insoluble bio-release micronutrient fertilizers, containing iron and manganese with either zinc and/or copper, comprising (a) heating orthophosphoric acid at a temperature of 130° C.-150° C. with a mixture of (i) source of iron o...
08/19/2010
 
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