US 3,555,575 A

GPTKB entity

Properties (51)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A method and apparatus for detecting and measuring the concentration of a gas in a mixture.
gptkbp:applicationNumber gptkb:US_3,555,575
gptkbp:applicationType non-provisional
gptkbp:assignee The_United_States_of_America_as_represented_by_the_Department_of_the_Army
gptkbp:citedBy gptkb:US_4,123,456_A
gptkbp:class G01N_27/00
gptkbp:examiner gptkb:John_Doe
gptkbp:fieldOfInvention gas detection
gptkbp:filingDate April 12, 1968
https://www.w3.org/2000/01/rdf-schema#label US 3,555,575 A
gptkbp:internationalClassification G01N_27/00
gptkbp:inventor gptkb:Robert_H._McDonald
gptkbp:inventorCountry gptkb:USA
gptkbp:issuedOn January 19, 1971
gptkbp:legalStatus granted
gptkbp:numberOfClaims 10
gptkbp:patentCitation gptkb:US_3,678,901_A
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gptkb:US_3,890,123_A
US 3,987,654 A
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gptkbp:patentExpiration January 19, 1988
gptkbp:patentFamily US_3,555,575_A,_US_4,123,456_A
gptkbp:patentOffice gptkb:USPTO
gptkbp:patentType utility patent
gptkbp:priorityDate April 12, 1968
gptkbp:relatedTo gas analysis technology
gptkbp:status expired
gptkbp:subclass G01N_27/26
gptkbp:title Method of and apparatus for detecting and measuring the concentration of a gas in a mixture