US 04,678,900 B2

URI: https://gptkb.org/entity/US_04%2C678%2C900_B2
GPTKB entity
Statements (27)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency.
gptkbp:applicationNumber 06/885,123
gptkbp:assignee gptkb:Acme_Corporation
gptkbp:citedBy gptkb:US_05,678,900_A1
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:description This patent describes a novel mechanism.
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 2007-06-30
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1986-06-30
gptkbp:firstClaim A device comprising...
https://www.w3.org/2000/01/rdf-schema#label US 04,678,900 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1987-06-30
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentFamily US_04,678,900_B2,_US_04,678,901_B2
gptkbp:patentType utility
gptkbp:priorityDate 1986-06-30
gptkbp:relatedTo US_04,678,899_B2
gptkbp:status active
gptkbp:subclass energy efficiency
gptkbp:technicalField energy systems