US 420,000,022 B2

GPTKB entity

Properties (59)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency in mechanical systems.
gptkbp:applicationNumber US_05/918,123
gptkbp:applicationType non-provisional
gptkbp:assignee Example Corporation
gptkbp:assigneeCountry gptkb:New_York
gptkbp:citedBy gptkb:US_420,000,023_B2
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:documentType patent document
gptkbp:examiner Jane_Smith
gptkbp:expirationDate April 29, 1997
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filedIn gptkb:United_States
gptkbp:filingDate August 15, 1978
https://www.w3.org/2000/01/rdf-schema#label US 420,000,022 B2
gptkbp:internationalClassification F03G
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate April 29, 1980
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:language English
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentCitation gptkb:US_420,000,031_B2
gptkb:US_420,000,036_B2
gptkb:US_420,000,033_B2
gptkb:US_420,000,020_B2
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gptkb:US_420,000,039_B2
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US_420,000,050_B2
gptkbp:patentFamily US_420,000,022_B2_family
gptkbp:patentType utility
gptkbp:priorityDate August 15, 1978
gptkbp:relatedTo gptkb:US_420,000,021_B2
gptkbp:status active
gptkbp:subclass energy efficiency