US 3,456,830 A

GPTKB entity

Statements (23)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material with improved properties.
gptkbp:applicationNumber 05/197,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:citedBy gptkb:US_4,123,456_A
gptkbp:claims 10
gptkbp:class 428/423
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention composite materials
gptkbp:filingDate November 1, 1967
https://www.w3.org/2000/01/rdf-schema#label US 3,456,830 A
gptkbp:internationalClassification C08L 23/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:issueDate July 15, 1969
gptkbp:issuedOn July 15, 1969
gptkbp:patentFamily Hargreaves_composite_patents
gptkbp:patentType utility
gptkbp:priorityDate April 12, 1968
gptkbp:relatedPatent gptkb:US_3,456,831_A
gptkbp:status expired
gptkbp:subclass 428/424
gptkbp:title Method of making a composite material