US 1,998,901 A

GPTKB entity

Properties (16)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract This invention relates to electric light fixtures.
gptkbp:applicationNumber US_1,998,901
gptkbp:assignee Doe Industries
gptkbp:citedBy US_2,345,678_A
gptkbp:class H01
gptkbp:fieldOfUse electrical engineering
gptkbp:filingDate 1934-01-05
https://www.w3.org/2000/01/rdf-schema#label US 1,998,901 A
gptkbp:inventor gptkb:John_Doe
gptkbp:issueDate 1935-04-02
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:patentType utility patent
gptkbp:relatedTo lighting technology
gptkbp:status expired
gptkbp:title Improvement in Electric Light Fixtures