US 4,000,982

GPTKB entity

Statements (91)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material.
gptkbp:applicationNumber 05/575,198
gptkbp:applicationPublication gptkb:US_1976/0000001_A1
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:citedBy gptkb:US_4,123,456
gptkbp:class 428/423
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfUse composite materials
gptkbp:filingDate March 30, 1975
https://www.w3.org/2000/01/rdf-schema#label US 4,000,982
gptkbp:internationalClassification B29C_70/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:inventorCountry gptkb:United_States
gptkbp:issueDate December 28, 1976
gptkbp:issuedBy December 28, 1976
gptkbp:legalStatus lapsed
gptkbp:maintenanceFee not paid
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gptkbp:patentFamily Hargreaves_composite_patents
gptkbp:patentNumber 4,000,982
gptkbp:patentType utility
gptkbp:priorityDate April 30, 1975
gptkbp:relatedPatent gptkb:US_4,123,456
gptkbp:status expired
gptkbp:subclass 428/424
gptkbp:title Method of making a composite material
gptkbp:USClassification 428/423