US 4,000,073 B2

URI: https://gptkb.org/entity/US_4%2C000%2C073_B2
GPTKB entity
Properties (39)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material.
gptkbp:applicationNumber 05/575,198
gptkbp:applicationPublicationNumber gptkb:US_4,000,073_A
gptkbp:applicationStatus abandoned
gptkbp:applicationType utility
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:citedBy gptkb:US_4,123,456
gptkbp:class 428/423
gptkbp:country gptkb:United_States
gptkbp:documentType B2 patent
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention composite materials
gptkbp:filingDate March 31, 1975
gptkbp:grantDate January 4, 1977
https://www.w3.org/2000/01/rdf-schema#label US 4,000,073 B2
gptkbp:internationalClassification C08L 23/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
gptkbp:inventorCountry gptkb:USA
gptkbp:inventorResidence gptkb:California
gptkbp:issuedOn January 4, 1977
gptkbp:language English
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:numberOfClaims 10
gptkbp:patentCitation US 3,999,999
gptkbp:patentClassification material science
gptkbp:patentExpiration January 4, 1994
gptkbp:patentFamily Hargreaves_composite_patents
gptkbp:patentLink https://patents.google.com/patent/US4000073B2
gptkbp:patentNumber 4,000,073
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType utility patent
gptkbp:priorityDate February 28, 1975
gptkbp:publicationDate January 4, 1977
gptkbp:relatedPatent US_4,000,074_B2
gptkbp:status active
gptkbp:subclass 428/424
gptkbp:title Method of making a composite material