US 4,923,456 A

GPTKB entity

Statements (21)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving the efficiency of widgets.
gptkbp:applicationNumber 07/392,123
gptkbp:applicationType Utility
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy gptkb:US_5,123,456_A
gptkbp:claims 20
gptkbp:examiner Jane_Smith
gptkbp:expirationDate May 8, 2007
gptkbp:fieldOfInvention Manufacturing
gptkbp:filingDate August 12, 1989
https://www.w3.org/2000/01/rdf-schema#label US 4,923,456 A
gptkbp:internationalClassification B23P_15/00
gptkbp:inventor gptkb:John_Doe
gptkbp:issuedOn May 8, 1990
gptkbp:location gptkb:United_States
gptkbp:patentFamily US_4,923,456_A,_US_5,123,456_A,_US_6,789,012_B2
gptkbp:priorityDate November 15, 1988
gptkbp:relatedTo gptkb:US_4,567,890_A
gptkbp:status granted
gptkbp:title Method for improving widget efficiency