US 507,890,123 A

URI: https://gptkb.org/entity/US_507%2C890%2C123_A
GPTKB entity
Statements (28)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A novel mechanism for improving efficiency.
gptkbp:applicationNumber 07/800,123
gptkbp:applicationType non-provisional
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:assigneeCountry gptkb:USA
gptkbp:citedBy US_509,123,456_A
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1991-05-15
gptkbp:firstClaim A mechanism comprising...
https://www.w3.org/2000/01/rdf-schema#label US 507,890,123 A
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1992-12-31
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus active
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_507,890,123_A,_US_509,123,456_A
gptkbp:patentLength 20 years
gptkbp:patentType utility
gptkbp:priorityDate 1990-05-15
gptkbp:relatedTo gptkb:US_506,789,012_A
gptkbp:status granted
gptkbp:subclass energy efficiency