US 4,000,084

URI: https://gptkb.org/entity/US_4%2C000%2C084
GPTKB entity
Properties (29)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving energy efficiency in heating systems.
gptkbp:applicationNumber 05/123,456
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:XYZ_Corporation
gptkbp:citedBy US_5,000,000
gptkbp:claims 10
gptkbp:class Energy conservation
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1994-12-28
gptkbp:fieldOfUse energy conservation
gptkbp:filingDate 1975-06-15
gptkbp:firstClaim A method for...
https://www.w3.org/2000/01/rdf-schema#label US 4,000,084
gptkbp:internationalClassification F24D
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issuedBy 1977-12-28
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_4,000,084_family
gptkbp:patentNumber 4,000,084
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType utility
gptkbp:priorityDate 1975-06-15
gptkbp:relatedPatent US 4,000,085
gptkbp:status expired
gptkbp:subclass Heating systems
gptkbp:title Method for improving efficiency