US 5153589 A

GPTKB entity

Statements (27)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method and apparatus for teaching reading using a computer.
gptkbp:applicationNumber 07/688,155
gptkbp:applicationType Utility
gptkbp:assignee gptkb:Houghton_Mifflin_Company
gptkbp:citedBy US_5638550
US_5547240
US_5755160
US_5867630
US_5901950
gptkbp:claims 20
gptkbp:class G09B 9/00
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention Education
gptkbp:filingDate January 3, 1991
https://www.w3.org/2000/01/rdf-schema#label US 5153589 A
gptkbp:internationalClassification G09B 9/00
gptkbp:inventor gptkb:Robert_J._H._Houghton
gptkbp:issuedOn October 6, 1992
gptkbp:patentFamily US_5153589_A,_US_5547240,_US_5638550
gptkbp:priorityDate January 3, 1991
gptkbp:publicationNumber 5153589
gptkbp:relatedTo reading instruction
computer-assisted learning
gptkbp:status Expired
gptkbp:subclass G09B 9/02
gptkbp:title Method and apparatus for teaching reading