US 04,567,923 B2

URI: https://gptkb.org/entity/US_04%2C567%2C923_B2
GPTKB entity
Statements (31)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel device for enhancing efficiency.
gptkbp:applicationNumber 06/740,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:assigneeCountry gptkb:USA
gptkbp:citedBy gptkb:US_05,678,910_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:description This patent describes a device that improves energy efficiency.
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2006-01-28
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1985-05-30
gptkbp:firstClaim A device comprising...
https://www.w3.org/2000/01/rdf-schema#label US 04,567,923 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issueDate 1986-01-28
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_04,567,923_B2,_US_04,567,922_B2
gptkbp:patentLength 20 years
gptkbp:patentNumber 4567923
gptkbp:patentType utility
gptkbp:priorityDate 1984-05-30
gptkbp:relatedTo gptkb:US_04,567,922_B2
gptkbp:status active
gptkbp:subclass energy efficiency