US 03,890,122 B2

GPTKB entity

Statements (27)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material with improved properties.
gptkbp:applicationNumber 05/368,155
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:citedBy gptkb:US_04,123,456
gptkb:US_03,890,121_B2
gptkbp:class Composite materials
gptkbp:examiner gptkb:John_Doe
No objections raised.
gptkbp:fieldOfInvention Composite materials
gptkbp:filingDate April 2, 1973
gptkbp:firstClaim A composite material comprising...
https://www.w3.org/2000/01/rdf-schema#label US 03,890,122 B2
gptkbp:internationalClassification C08L 23/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:issuedOn June 24, 1975
gptkbp:legalStatus Granted
gptkbp:maintenanceFee Paid
gptkbp:numberOfClaims 10
gptkbp:patentFamily Hargreaves_composite_patents
gptkbp:patentLength 20 years
gptkbp:patentType Utility patent
gptkbp:priorityDate August 1, 1973
gptkbp:relatedTo gptkb:US_03,890,121_B2
gptkbp:status Active
gptkbp:subclass Manufacturing processes
gptkbp:title Method of making a composite material