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gptkbp:instanceOf
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patent
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gptkbp:abstract
|
A method for producing a composite material with improved properties.
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gptkbp:applicationNumber
|
05/368,174
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gptkbp:applicationType
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utility
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gptkbp:assignee
|
gptkb:Hargreaves_Industries,_Inc.
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gptkbp:citedBy
|
gptkb:US_4,123,456
US_5,678,910
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gptkbp:claims
|
10
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gptkbp:class
|
428/423
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gptkbp:country
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gptkb:United_States
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gptkbp:documentType
|
patent grant
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gptkbp:examiner
|
gptkb:John_Doe
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gptkbp:expirationDate
|
June 24, 1992
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gptkbp:fieldOfInvention
|
composite materials
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gptkbp:filedIn
|
April 12, 1973
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https://www.w3.org/2000/01/rdf-schema#label
|
US 3,890,128 B2
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gptkbp:internationalClassification
|
C08L 23/00
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gptkbp:inventor
|
gptkb:Robert_H._Hargreaves
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gptkbp:inventorResidence
|
gptkb:California
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gptkbp:issuedOn
|
June 24, 1975
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gptkbp:language
|
English
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gptkbp:legalStatus
|
granted
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gptkbp:maintenanceFee
|
paid
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|
gptkbp:patentCitation
|
gptkb:US_3,678,901
US_3,456,789
US_3,789,012
US_3,567,890
US_3,890,000
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gptkbp:patentFamily
|
Hargreaves_Composite_Family
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gptkbp:patentOffice
|
gptkb:USPTO
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gptkbp:priorityDate
|
August 1, 1973
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gptkbp:relatedPatent
|
gptkb:US_3,890,127_B2
gptkb:US_3,890,129_B2
|
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gptkbp:status
|
active
|
|
gptkbp:title
|
Method of making a composite material
|