US 4,000,954

GPTKB entity

Statements (93)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material.
gptkbp:applicationNumber 05/575,198
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:citedBy gptkb:US_4,123,456
US_4,567,890
gptkbp:claims 10
gptkbp:class 428/423
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfUse composite materials
gptkbp:filingDate March 29, 1975
https://www.w3.org/2000/01/rdf-schema#label US 4,000,954
gptkbp:internationalClassification C08L 23/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate December 28, 1976
gptkbp:issuedBy December 28, 1976
gptkbp:legalStatus lapsed
gptkbp:maintenanceFee not paid
gptkbp:patentCitation US 4,300,000
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gptkbp:patentFamily Hargreaves_Composite_Family
gptkbp:patentType utility
gptkbp:priorityDate April 29, 1975
gptkbp:relatedPatent gptkb:US_4,111,111
US 3,999,999
gptkbp:status expired
gptkbp:subclass 428/424
gptkbp:title Method of making a composite material