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gptkbp:instanceOf
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patent
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gptkbp:abstract
|
A method for producing a composite material.
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gptkbp:applicationNumber
|
05/575,198
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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_4,567,890
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gptkbp:claims
|
10
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gptkbp:class
|
428/423
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gptkbp:examiner
|
gptkb:John_Doe
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gptkbp:fieldOfUse
|
composite materials
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gptkbp:filingDate
|
March 30, 1975
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https://www.w3.org/2000/01/rdf-schema#label
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US 4,000,968
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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:issuedBy
|
December 28, 1976
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gptkbp:legalStatus
|
Lapsed
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gptkbp:maintenanceFee
|
Not paid
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gptkbp:patentFamily
|
Hargreaves_Composite_Family
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gptkbp:patentNumber
|
4,000,968
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gptkbp:patentOffice
|
gptkb:United_States_Patent_and_Trademark_Office
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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_4,000,967
gptkb:US_4,000,969
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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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