US 450,123,543 A

GPTKB entity

Statements (24)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 06/123,456
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_500,000,001_A
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2005-05-15
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1982-05-15
https://www.w3.org/2000/01/rdf-schema#label US 450,123,543 A
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1985-02-26
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_450,123,543_A,_US_450,123,542_A,_US_450,123,544_A
gptkbp:patentType utility
gptkbp:priorityDate 1981-05-15
gptkbp:relatedTo US_450,123,542_A
gptkbp:status active
gptkbp:subclass energy conversion