US 4,000,020 B1

GPTKB entity

Properties (33)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency.
gptkbp:applicationNumber 05/600,000
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy US_5,000,000
gptkbp:claims 10
gptkbp:class F16H 1/00
gptkbp:description This patent describes a novel mechanism.
gptkbp:drawings Figure 1, Figure 2
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1994-12-28
gptkbp:fieldOfInvention Mechanical Engineering
gptkbp:filingDate 1975-06-30
https://www.w3.org/2000/01/rdf-schema#label US 4,000,020 B1
gptkbp:internationalClassification H02P 9/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
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...
gptkbp:patentDescription Improved Mechanical Device
gptkbp:patentFamily US_4,000,020_B1_family
gptkbp:patentLength 20 years
gptkbp:patentNumber 4,000,020
gptkbp:patentType utility
gptkbp:priorityDate 1975-06-30
gptkbp:relatedTo US_3,000,000
gptkbp:status active
gptkbp:subclass F16H 1/02
gptkbp:technology mechanical system