US 4,000,089 A

URI: https://gptkb.org/entity/US_4%2C000%2C089_A
GPTKB entity
Statements (30)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract This patent describes an improved design for widgets that enhances efficiency.
gptkbp:applicationNumber US 05/586,123
gptkbp:applicationType Non-Provisional
gptkbp:assignee Doe Industries
gptkbp:assigneeCountry gptkb:New_York
gptkbp:citedBy US_4,500,000_A
gptkbp:claims 10
gptkbp:classification Class 123 - Internal Combustion Engines
gptkbp:country gptkb:United_States
gptkbp:documentType Patent_Grant
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1994-12-28
gptkbp:fieldOfInvention Mechanical Engineering
gptkbp:filingDate 1975-05-30
gptkbp:firstClaim A widget comprising...
https://www.w3.org/2000/01/rdf-schema#label US 4,000,089 A
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1977-12-28
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:language English
gptkbp:legalStatus Active
gptkbp:maintenanceFee Paid
gptkbp:patentFamily US_4,000,089_A,_US_4,500,000_A
gptkbp:patentType Utility Patent
gptkbp:priorityDate 1975-05-30
gptkbp:relatedTo US_3,500,000_A
gptkbp:status Expired
gptkbp:title Improved_Widget_Design