US 2,555,667 B2

GPTKB entity

Properties (60)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing books.
gptkbp:applicationDate February 1, 1946
gptkbp:applicationNumber Serial No. 622,123
gptkbp:assignee gptkb:Houghton_Mifflin_Company
gptkbp:citedBy US_3,000,000
gptkbp:country gptkb:United_States
gptkbp:documentType B2 patent
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention book manufacturing
gptkbp:filingDate February 1, 1946
gptkbp:grantDate May 29, 1951
https://www.w3.org/2000/01/rdf-schema#label US 2,555,667 B2
gptkbp:internationalClassification B42D
gptkbp:inventor gptkb:William_H._H._Houghton
gptkbp:issuedOn May 29, 1951
gptkbp:language English
gptkbp:legalStatus active
gptkbp:maintenanceFee paid
gptkbp:numberOfClaims 10
gptkbp:patentCitation US 4,300,000
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gptkbp:patentClassification Class 281
SubClass_1
gptkbp:patentFamily Houghton_family
gptkbp:patentNumber 2,555,667
gptkbp:patentType utility
gptkbp:priorityDate April 12, 1946
gptkbp:publications B2
gptkbp:relatedTo bookbinding
gptkbp:status granted
gptkbp:title Method of making a book