US 3,555,522

URI: https://gptkb.org/entity/US_3%2C555%2C522
GPTKB entity
Statements (32)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for efficiently preparing a sandwich.
gptkbp:applicationDate 1970-01-12
gptkbp:applicationNumber gptkb:US_3,555,522
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Sandwich_Corp.
gptkbp:citedBy gptkb:US_4,123,456
gptkbp:claims 10
gptkbp:class 99/123
gptkbp:coInventor gptkb:Alice_Smith
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1991-01-12
gptkbp:fieldOfInvention food preparation
gptkbp:filedIn gptkb:John_Doe
gptkbp:firstClaim A sandwich comprising...
https://www.w3.org/2000/01/rdf-schema#label US 3,555,522
gptkbp:internationalClassification A47J
gptkbp:inventor gptkb:John_Doe
gptkbp:issuedBy gptkb:John_Doe
gptkbp:issuedOn 1971-01-12
gptkbp:legalStatus granted
gptkbp:location gptkb:United_States
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_3,555,522_family
gptkbp:patentNumber 3,555,522
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType utility
gptkbp:priorityDate 1969-06-15
gptkbp:relatedPatent US_3,456,789
gptkbp:status active
gptkbp:subclass 99/124
gptkbp:title Method for making a sandwich