US2442149A

URI: https://gptkb.org/entity/US2442149A

GPTKB entity

Predicate	Object
gptkbp:instanceOf	gptkb:US_patent
gptkbp:assignee	gptkb:Bell_Telephone_Laboratories
gptkbp:country	gptkb:United_States
gptkbp:describes	gptkb:point-contact_transistor
gptkbp:fieldOfInvention	semiconductor devices
gptkbp:filingDate	1948-06-17
gptkbp:inventedBy	gptkb:John_Bardeen gptkb:Walter_H._Brattain gptkb:William_B._Shockley
gptkbp:language	English
gptkbp:priorityDate	1948-06-17
gptkbp:publicationDate	1948-06-17
gptkbp:status	expired
gptkbp:title	gptkb:transistor
gptkbp:bfsParent	gptkb:Process_for_the_Preparation_of_Streptomycin
gptkbp:bfsLayer	7
http://www.w3.org/2000/01/rdf-schema#label	US2442149A