US 3,555,533 A

GPTKB entity

Properties (23)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material with improved properties.
gptkbp:applicationNumber gptkb:US_3,555,533
gptkbp:applicationType Utility
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:citedBy gptkb:US_4,123,456
US_5,678,910
gptkbp:claims 10
gptkbp:class Composite materials
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention composite materials
gptkbp:filingDate March 15, 1968
https://www.w3.org/2000/01/rdf-schema#label US 3,555,533 A
gptkbp:internationalClassification C08L 23/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:issuedOn January 19, 1971
gptkbp:patentFamily Hargreaves_composite_patents
gptkbp:priorityDate March 15, 1968
gptkbp:relatedPatent US 3,987,654
US_3,456,789
gptkbp:status expired
gptkbp:subclass Reinforced plastics
gptkbp:title Method of making a composite material