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gptkbp:instanceOf
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patent
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gptkbp:abstract
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A method for producing a composite material.
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gptkbp:applicationNumber
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05/575,198
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gptkbp:applicationType
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Utility
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gptkbp:assignee
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gptkb:Hargreaves_Industries,_Inc.
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gptkbp:citedBy
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gptkb:US_4,123,456
US_4,567,890
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gptkbp:claims
|
10
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gptkbp:class
|
428/423
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gptkbp:examiner
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gptkb:John_Doe
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gptkbp:fieldOfUse
|
composite materials
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gptkbp:filingDate
|
March 30, 1975
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gptkbp:firstClaim
|
A composite material comprising...
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https://www.w3.org/2000/01/rdf-schema#label
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US 4,000,013
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gptkbp:internationalClassification
|
C08L 23/00
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gptkbp:inventor
|
gptkb:Robert_H._Hargreaves
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gptkbp:inventorCountry
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gptkb:United_States
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gptkbp:issuedOn
|
December 28, 1976
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gptkbp:legalStatus
|
Lapsed
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gptkbp:maintenanceFee
|
Paid
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gptkbp:patentFamily
|
Hargreaves_Composite_Family
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gptkbp:patentLength
|
20 years
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gptkbp:patentType
|
Utility Patent
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gptkbp:priorityDate
|
April 30, 1975
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gptkbp:relatedPatent
|
gptkb:US_4,000,012
US_4,000,014
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gptkbp:status
|
expired
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gptkbp:subclass
|
428/424
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gptkbp:title
|
Method of making a composite material
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