US 5051525354 B2

GPTKB entity

Properties (73)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency.
gptkbp:applicationNumber 07/713,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:assigneeCountry gptkb:USA
gptkbp:citedBy US_1234567890_A1
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2011-09-24
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1991-06-07
https://www.w3.org/2000/01/rdf-schema#label US 5051525354 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issueDate 1991-09-24
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:location gptkb:USA
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gptkbp:patentFamily US_5051525354_B2,_US_5051525355_B2
gptkbp:patentType utility
gptkbp:priorityDate 1990-06-07
gptkbp:relatedTo gptkb:US_5051525355_B2
gptkbp:status active
gptkbp:subclass energy efficiency