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Class Information
Number: 434/346
Name: Education and demonstration > Question or problem eliciting response > Correctness of response indicated to examine by self-operating or examinee actuated means > Correctness of response indicated when examinee physically alters element other than by marking it
Description: Subject matter wherein the examinee responds to a question or problem by altering an element in some way other than by marking it (e.g., by abrading, erasing, puncturing, etc.) and the correctness of the response is revealed as the result of such alteration.










Patents under this class:

Patent Number Title Of Patent Date Issued
7516180 System and method for providing instructor services using a plurality of client workstations connected to a central control station Apr. 7, 2009
7252510 Entertainment device and method of using the same Aug. 7, 2007
6957038 Self-scoring method and apparatus for early self-screening of neurological disease Oct. 18, 2005
6879805 Test form having a removable opaque layer, and method and apparatus for printing on the form Apr. 12, 2005
6739874 Electronic educational toy appliance teaching letters words and numbers May. 25, 2004
6210171 Method and apparatus for multiple choice testing system with immediate feedback for correctness of response Apr. 3, 2001
5618180 Method of teaching using a computer Apr. 8, 1997
5447439 Interactive story book using stickers and a method of teaching Sep. 5, 1995
5281146 Educational device and method Jan. 25, 1994
5254376 Graphic communication medium Oct. 19, 1993
5243173 Machine readable form and method Sep. 7, 1993
5123658 Card game Jun. 23, 1992
5037302 Educational toy with a repairable defect for teaching humanistic values to a child Aug. 6, 1991
4964642 Variably scored skill game Oct. 23, 1990
4868020 Rub and show graphics Sep. 19, 1989
4830405 Method of validating data entered on a ticket and the like May. 16, 1989
4702497 Method of encoding a symbol or message on a plastic material and an article on which a symbol has been so encoded Oct. 27, 1987
4687203 Scratch and smell game Aug. 18, 1987
4508513 Game card device Apr. 2, 1985
4493655 Radio-controlled teaching device Jan. 15, 1985
4487585 Educational toy having fragrance association means Dec. 11, 1984
4466614 Game with selectable playing areas Aug. 21, 1984
4354845 Identification structure for games and educational use and for other use Oct. 19, 1982
4337051 Self-scoring test with non-disclosed key Jun. 29, 1982
4299637 Method of making a game ticket Nov. 10, 1981
4109047 Rub-on security cards Aug. 22, 1978
4097068 Feed-back communication card Jun. 27, 1978
4095824 Secure contest card Jun. 20, 1978
3938993 Xerographic method for making a responsive answer system Feb. 17, 1976











 
 
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