US 4,444,443 C2

URI: https://gptkb.org/entity/US_4%2C444%2C443_C2
GPTKB entity
Properties (34)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 06/440,000
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:assigneeCountry gptkb:USA
gptkbp:citedBy gptkb:US_5,555,555
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2001-12-30
gptkbp:fieldOfInvention mechanical engineering
gptkbp:fieldOfUse industrial applications
gptkbp:filingDate 1982-12-30
gptkbp:firstClaim A mechanical device comprising...
https://www.w3.org/2000/01/rdf-schema#label US 4,444,443 C2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1984-04-24
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentCitation US_4,000,000
gptkbp:patentDescription Improved Mechanical Device
gptkbp:patentFamily US_4,444,443_C2,_US_4,444,444_C2
gptkbp:patentLength 17 years
gptkbp:patentNumber 4,444,443
gptkbp:patentType utility
gptkbp:priorityDate 1982-12-30
gptkbp:relatedTo US_4,444,442_C2
gptkbp:status active
gptkbp:subclass energy efficiency
gptkbp:technologyDomain energy systems