US 5638557 A

GPTKB entity

Statements (26)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for producing a high strength, high toughness steel.
gptkbp:applicationNumber 08/370,052
gptkbp:applicationType Utility
gptkbp:assignee gptkb:Hsu_Robert_J._H.
gptkbp:citedBy gptkb:US_6177240
US_5783030
US_5900130
US_5980420
US_6051160
gptkbp:claims 20
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention Metallurgy
gptkbp:filingDate January 10, 1995
https://www.w3.org/2000/01/rdf-schema#label US 5638557 A
gptkbp:inventor gptkb:Robert_J._H._Hsu
gptkbp:issuedBy June 10, 1997
gptkbp:priorityDate January 10, 1995
gptkbp:publicationNumber 5638557
gptkbp:relatedPatent US_5638558_A
US_5638559_A
US_5638560_A
US_5638561_A
US_5638562_A
gptkbp:status Expired
gptkbp:title Method for producing a high strength, high toughness steel