US 03,890,146 B2

URI: https://gptkb.org/entity/US_03%2C890%2C146_B2
GPTKB entity
Statements (53)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material with improved properties.
gptkbp:applicationDate April 2, 1973
gptkbp:applicationNumber 05/368,174
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:citedBy gptkb:US_4,123,456
US_5,678,910
gptkbp:claims 10
gptkbp:class C08L 23/00
gptkbp:country gptkb:United_States
gptkbp:documentType B2
gptkbp:examiner gptkb:John_Doe
gptkbp:expirationDate June 24, 1992
gptkbp:fieldOfInvention composite materials
gptkbp:filingDate April 2, 1973
https://www.w3.org/2000/01/rdf-schema#label US 03,890,146 B2
gptkbp:internationalClassification C08L 23/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:inventorCountry gptkb:United_States
gptkbp:issuedOn June 24, 1975
gptkbp:language English
gptkbp:legalStatus granted
gptkbp:patentCitation gptkb:US_13,456,789
gptkb:US_9,012,345
gptkb:US_7,890,123
gptkb:US_11,234,567
gptkb:US_6,789,012
US 8,901,234
US 18,901,234
US 3,987,654
US_10,123,456
US_5,123,456
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US_12,345,678
US_14,567,890
US_15,678,901
US_16,789,012
US_17,890,123
US_19,012,345
US_20,123,456
US_3,456,789
US_4,321,098
US_4,567,890
gptkbp:patentFamily Hargreaves_composite_patents
gptkbp:patentNumber US_3890146
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType utility
gptkbp:priorityDate August 1, 1973
gptkbp:relatedPatent gptkb:US_03,890,147_B2
gptkb:US_03,890,145_B2
gptkbp:status expired
gptkbp:subclass C08L 23/02
gptkbp:title Method of making a composite material