US 4,321,181

GPTKB entity

Statements (63)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber 06/123,456
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkb:New_York
gptkbp:assigneeCountry gptkb:USA
gptkbp:citedBy US_5,678,901
gptkbp:claims 10
gptkbp:class mechanical systems
gptkbp:country gptkb:United_States
gptkbp:description This patent describes a method for enhancing the performance of mechanical devices.
gptkbp:documentType patent document
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1999-03-30
gptkbp:fieldOfUse mechanical engineering
gptkbp:filingDate 1980-05-15
https://www.w3.org/2000/01/rdf-schema#label US 4,321,181
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:inventorResidence gptkb:California
gptkbp:issuedBy 1982-03-30
gptkbp:language English
gptkbp:legalStatus granted
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gptkbp:patentFamily US_4,321,181_family
gptkbp:patentNumber 4,321,181
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType utility
gptkbp:priorityDate 1980-05-15
gptkbp:relatedTo gptkb:US_4,321,180
gptkbp:status active
gptkbp:subclass mechanical methods
gptkbp:title Method for improving efficiency