Carta-patente expirada
#21.1
Patente extinta em 01/10/2013
01/21/2015
RPI 2298
Application data
Number
PI9304000Type
Filing
Publication
The letters patent expired on 01/21/2015: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 01/21/2015. We update with every new RPI gazette, published weekly.
Applicants
Praxair Technology, Inc.
US
Inventors
J. N. (pessoa física)
US
IPC Classification
Priority claims
US
955.787 · 10/02/1992
Abstract
Trata-se, de maneira geral, em um aparelho para prover um fluxo de fluido uniforme em vasos contendo materiais de compactação ou particulados e, particularmente, de um aparelho para prover um fluxo de gás uniforme em vasos adsorventes de troca de pressão.
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