US 3,555,551 A

GPTKB entity

Properties (62)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material.
gptkbp:applicationDate March 15, 1969
gptkbp:applicationNumber gptkb:US_3,555,551
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:assigneeCountry gptkb:United_States
gptkbp:citedBy gptkb:US_4,123,456_A
gptkb:US_5,678,901_A
gptkbp:class Composite materials
gptkbp:country gptkb:United_States
gptkbp:documentType patent document
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention composite materials
gptkbp:filingDate March 15, 1969
gptkbp:grantDate January 19, 1971
https://www.w3.org/2000/01/rdf-schema#label US 3,555,551 A
gptkbp:internationalClassification C08L 23/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:inventorResidence gptkb:United_States
gptkbp:issuedOn January 19, 1971
gptkbp:language English
gptkbp:legalStatus granted
gptkbp:numberOfClaims 10
gptkbp:patentCitation gptkb:US_3,678,901_A
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US 18,901,234 A
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gptkbp:patentExpiration 1978-01-19
gptkbp:patentFamily US_3,555,551_A_family
gptkbp:patentNumber 3,555,551
gptkbp:patentType utility patent
gptkbp:priorityDate March 15, 1968
gptkbp:relatedTo gptkb:US_3,456,789_A
gptkbp:status expired
gptkbp:subclass Manufacturing processes
gptkbp:title Method of making a composite material