US 4,000,943

URI: https://gptkb.org/entity/US_4%2C000%2C943
GPTKB entity
Properties (61)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a composite material.
gptkbp:applicationNumber 05/575,198
gptkbp:applicationPublication gptkb:US_1976/0000001_A1
gptkbp:applicationStatus abandoned
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Hargreaves_Industries,_Inc.
gptkbp:assigneeCountry gptkb:California
gptkbp:citedBy US_5,000,000
gptkbp:claims 10
gptkbp:class 428/423
gptkbp:country gptkb:United_States
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention materials science
gptkbp:fieldOfUse composite materials
gptkbp:filedIn March 30, 1975
https://www.w3.org/2000/01/rdf-schema#label US 4,000,943
gptkbp:internationalClassification C08L 23/00
gptkbp:inventor gptkb:Robert_H._Hargreaves
Jane_Smith
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate December 28, 1976
gptkbp:issuedBy December 28, 1976
gptkbp:legalStatus lapsed
gptkbp:maintenanceFee not paid
gptkbp:patentAbstract A method for producing a composite material.
gptkbp:patentAssignee gptkb:Hargreaves_Industries,_Inc.
California.
gptkbp:patentCitation cited by other patents.
US_3,000,000
gptkbp:patentClaim 10 claims.
gptkbp:patentClassification 428/423
C08L 23/00.
428/423.
gptkbp:patentExpiration December 28, 1993
December 28, 1993.
gptkbp:patentFamily Hargreaves_Composite_Family
gptkbp:patentFamilyMembers related patents.
gptkbp:patentField materials science.
composite materials.
gptkbp:patentFilingDate December 28, 1976
March 30, 1975
US_4,000,943_A
gptkbp:patentInventor gptkb:Robert_H._Hargreaves
California.
John_Doe.
gptkbp:patentMaintenanceFee not paid.
gptkbp:patentNumber 4,000,943
gptkbp:patentStatus expired
expired.
lapsed.
gptkbp:patentType utility
granted patent
granted patent.
abandoned.
US_4,123,456.
gptkbp:priorityDate April 30, 1975
gptkbp:relatedPatent gptkb:US_4,123,456
gptkbp:status expired
gptkbp:subclass 428/424
gptkbp:title Method of making a composite material