US 3,555,574

URI: https://gptkb.org/entity/US_3%2C555%2C574
GPTKB entity
Statements (40)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract This patent describes an improved widget design.
gptkbp:applicationNumber US_12345678
gptkbp:applicationPublication 1970-07-01
gptkbp:applicationType Utility
gptkbp:assignee Example Corporation
gptkbp:citedBy US_4,000,000
gptkbp:claims 20
gptkbp:class Mechanics
gptkbp:documentType Patent Document
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1991-01-12
gptkbp:fieldOfInvention Mechanical Engineering
gptkbp:fieldOfUse Consumer Products
gptkbp:filingDate 1970-01-01
gptkbp:firstClaim A widget comprising...
https://www.w3.org/2000/01/rdf-schema#label US 3,555,574
gptkbp:internationalClassification F16B
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorCountry gptkb:USA
gptkbp:issueDate 1971-01-12
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:language English
gptkbp:legalStatus Lapsed
gptkbp:location gptkb:USA
gptkbp:maintenanceFee Paid
gptkbp:marketedAs Example Corporation
gptkbp:nonPatentCitation gptkb:Journal_of_Widget_Engineering
gptkbp:patentCitation US_3,000,000
gptkbp:patentFamily US_3,555,574,_US_3,555,575
gptkbp:patentLength 20 years
gptkbp:patentNumber 3,555,574
gptkbp:patentType Utility Patent
gptkbp:priorityDate 1969-01-01
gptkbp:publications B1
gptkbp:relatedPatent gptkb:US_3,555,573
gptkbp:relatedTo gptkb:US_3,555,573
gptkbp:status Expired
gptkbp:subclass Widgets
gptkbp:title An Improved Widget