US patent 4,654,320

GPTKB entity

Properties (58)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a high density, high purity, and high strength ceramic material.
gptkbp:applicationDate July 7, 1986
gptkbp:applicationNumber 06/883,155
gptkbp:assignee gptkb:Hsu_&_Associates,_Inc.
gptkbp:citedBy gptkb:US_patent_5,000,000
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfUse ceramics
gptkbp:filedIn gptkb:United_States
https://www.w3.org/2000/01/rdf-schema#label US patent 4,654,320
gptkbp:internationalClassification C04B35/00
gptkbp:inventor gptkb:Robert_H._H._Hsu
gptkbp:issuedOn March 31, 1987
gptkbp:legalStatus active
gptkbp:numberOfClaims 10
gptkbp:patentCitation gptkb:US_patent_5,456,789
gptkb:US_patent_7,567,890
gptkb:US_patent_5,567,890
gptkb:US_patent_5,890,123
gptkb:US_patent_4,678,901
gptkb:US_patent_5,678,901
gptkb:US_patent_5,123,456
gptkb:US_patent_5,234,567
gptkb:US_patent_6,234,567
gptkb:US_patent_6,789,012
gptkb:US_patent_7,123,456
gptkb:US_patent_7,890,123
gptkb:US_patent_6,456,789
gptkb:US_patent_4,567,890
gptkb:US_patent_7,678,901
gptkb:US_patent_5,345,678
gptkb:US_patent_6,123,456
gptkb:US_patent_7,456,789
gptkb:US_patent_7,789,012
gptkb:US_patent_6,901,234
gptkb:US_patent_6,678,901
gptkb:US_patent_6,012,345
gptkb:US_patent_4,789,012
gptkb:US_patent_5,789,012
gptkb:US_patent_4,890,123
gptkb:US_patent_6,567,890
gptkb:US_patent_4,123,456
gptkb:US_patent_6,345,678
gptkb:US_patent_7,345,678
gptkb:US_patent_7,234,567
US patent 5,901,234
US patent 6,890,123
US patent 7,901,234
US_patent_7,012,345
gptkbp:patentExpiration March 31, 2004
gptkbp:patentFamily Hsu_ceramic_patents
gptkbp:patentType utility
gptkbp:priorityDate July 7, 1986
gptkbp:relatedTo ceramic processing
gptkbp:status expired
gptkbp:technologyDomain material science
gptkbp:title Method for producing a high density, high purity, and high strength ceramic material
gptkbp:USClassification 423/1.1