RPX’s CEO released a statement on our response to the COVID-19 emergency. Click here to access.

RPX’s CEO released a statement on our response to the COVID-19 emergency. Click here to access.

CHARACTER RECOGNITION APPARATUS

  • US 3,803,553 A
  • Filed: 06/14/1972
  • Issued: 04/09/1974
  • Est. Priority Date: 06/14/1972
  • Status: Expired due to Term
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