US 5153587 A

GPTKB entity

Statements (27)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method and apparatus for teaching reading using a combination of visual and auditory stimuli.
gptkbp:applicationNumber 07/688,155
gptkbp:applicationType utility
gptkbp:assignee gptkb:Houghton_Mifflin_Company
gptkbp:citedBy gptkb:US_5755160_A
gptkb:US_5638550_A
gptkb:US_5882260_A
US 6000280 A
US_5542030_A
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention education
gptkbp:filingDate April 15, 1991
gptkbp:grantDate October 6, 1992
https://www.w3.org/2000/01/rdf-schema#label US 5153587 A
gptkbp:internationalClassification G09B 9/00
gptkbp:inventor gptkb:Robert_J._H._Houghton
gptkbp:issuedOn October 6, 1992
gptkbp:numberOfClaims 20
gptkbp:numberOfFigures 5
gptkbp:patentFamily US_5153587_A,_US_5153586_A,_US_5153588_A
gptkbp:priorityDate March 15, 1991
gptkbp:relatedTo gptkb:US_5153586_A
gptkb:US_5153588_A
gptkbp:status expired
gptkbp:title Method and apparatus for teaching reading
gptkbp:USClassification 434/1.1