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We now have a patent calculator that will give you the year the patent was issued to Thomas Edison. There may be a few patent numbers and dates missing. If you have a patent number and year that is not in our index please e-mail support@edisonworld.com.  We hope this service will help you.

 

NOTE: You MUST have a JavaScript enabled browser to use the patent calculator.

 

Enter Patent Number Year Patent Granted




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