US 429,876,541 B2

GPTKB entity

Properties (34)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method for improving efficiency.
gptkbp:applicationNumber 06/194,123
gptkbp:applicationStatus granted
gptkbp:assignee gptkb:Acme_Corporation
gptkb:New_York
gptkbp:citedBy US_5,123,456
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate November 3, 2001
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filedIn gptkb:United_States
gptkbp:filingDate October 15, 1980
https://www.w3.org/2000/01/rdf-schema#label US 429,876,541 B2
gptkbp:internationalClassification F16H 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate November 3, 1981
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalEvent maintenance fee paid
gptkbp:patentAbstract This invention relates to...
gptkbp:patentCitation US_4,567,890
gptkbp:patentExpiration 20 years from filing
gptkbp:patentFamily US_429,876,541_B2,_US_429,876,540_B2
gptkbp:patentLitigation none
gptkbp:patentMaintenanceFee required every 4 years
gptkbp:patentNumber 429876541
gptkbp:patentType utility
granted utility patent
gptkbp:priorityDate October 15, 1980
gptkbp:relatedTo US_429,876,540_B2
gptkbp:status active
gptkbp:subclass improvements