230000003993 interaction Effects 0.000 claims description 5.230000001627 detrimental Effects 0.000 claims description 6.
Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US1062508P priority Critical Priority to US12/290,568 priority patent/US20090174142A1/en Application filed by Richard Joseph Sullivan filed Critical Richard Joseph Sullivan Priority to US13/089,125 priority patent/US20110193290A1/en Publication of US20110193290A1 publication Critical patent/US20110193290A1/en Status Abandoned legal-status Critical Current Links Sullivan Original Assignee Richard Joseph Sullivan Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Abandoned Application number US13/089,125 Inventor Richard J. Google Patents US20110193290A1 - Methods and apparatus for educational spelling games US20110193290A1 - Methods and apparatus for educational spelling games
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