US 4,000,489 B1

URI: https://gptkb.org/entity/US_4%2C000%2C489_B1
GPTKB entity
Properties (52)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency.
gptkbp:applicationNumber 05/688,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_5,000,000
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1994-12-28
gptkbp:fieldOfInvention mechanical engineering
gptkbp:fieldOfUse industrial applications
gptkbp:filingDate 1976-06-30
https://www.w3.org/2000/01/rdf-schema#label US 4,000,489 B1
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1977-12-28
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentAbstract This invention relates to a device that enhances energy efficiency.
gptkbp:patentAssignee gptkb:Acme_Corporation
gptkbp:patentCitation US_3,000,000
gptkbp:patentClassification utility patent
F03D 1/00
gptkbp:patentDescription Detailed description of the invention.
gptkbp:patentExpiration 1994-12-28
gptkbp:patentFamily US_4,000,489
gptkbp:patentFamilyMembers gptkb:US_4,000,490_B1
gptkbp:patentField mechanical engineering
energy efficiency devices
gptkbp:patentFilingDate 1976-06-30
1977-12-28
gptkbp:patentImage image_url_here
gptkbp:patentInventor gptkb:John_Doe
20 years
Jane_Smith
gptkbp:patentLink https://patents.google.com/patent/US4000489B1
gptkbp:patentMaintenanceFee paid
gptkbp:patentNumber 4,000,489
gptkbp:patentOwner gptkb:Acme_Corporation
gptkbp:patentStatus active
gptkbp:patentType utility
non-provisional
gptkbp:priorityDate 1976-06-30
gptkbp:relatedPatent gptkb:US_4,000,490_B1
gptkbp:relatedTo US_4,000,488_B1
gptkbp:status active
gptkbp:subclass energy efficiency
gptkbp:technologyDomain energy systems
gptkbp:title Improved Mechanical Device