US 03,890,133 B2

URI: https://gptkb.org/entity/US_03%2C890%2C133_B2
GPTKB entity
Statements (50)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material with improved properties.
gptkbp:applicationNumber 05/368,155
gptkbp:applicationType utility
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:citedBy gptkb:US_4,123,456
US_5,678,910
gptkbp:claims 20
gptkbp:class 428/423
gptkbp:documentType patent document
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention composite materials
gptkbp:filedIn gptkb:Robert_H._Hargreaves
https://www.w3.org/2000/01/rdf-schema#label US 03,890,133 B2
gptkbp:inventiveStep yes
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:issuedOn June 24, 1975
gptkbp:language English
gptkbp:legalStatus lapsed
gptkbp:location gptkb:United_States
gptkbp:novelty yes
gptkbp:patentCitation gptkb:US_5,432,109
gptkb:US_6,543,210
gptkb:US_7,654,321
gptkb:US_8,765,432
gptkb:US_11,098,765
gptkb:US_9,876,543
gptkb:US_13,210,987
US 3,987,654
US_10,987,654
US_12,109,876
US_14,321,098
US_19,876,543
US_3,456,789
US_4,321,098
US_20,987,654
US_15,432,109
US_16,543,210
US_17,654,321
US_18,765,432
gptkbp:patentFamily Hargreaves_composite_patents
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType granted
gptkbp:priorityDate August 1, 1973
gptkbp:relatedTo gptkb:US_03,890,132_B2
gptkb:US_03,890,134_B2
gptkbp:status expired
gptkbp:subclass 428/424
gptkbp:technicalField materials science
gptkbp:title Method of making a composite material