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Official data from INPI

EJETOR PARA O PROCESSO CO2 NA NEUTRALIZAÇÃO DE ÁGUAS ALCALINAS

Em ExigênciaInvention Patent

Application data

Number

PI8503919

Type

Invention Patent

Filing

08/16/1985

Publication

03/24/1987

Progress at the INPI

  1. Filing08/16/85
  2. Publication03/24/87
  3. Examination05/26/87
  4. Allowance03/06/90
  5. Grant09/25/90
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/12/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Liquid Carbonic Indústrias S/A

RJ, BR

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Inventors

P. D. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

09/12/1989

RPI 986

Solicitação de exame técnico

#4.1

05/26/1987

RPI 866

Publicação do pedido de patente

#3.1

03/24/1987

RPI 857

Pedido de patente depositado

#2.1

10/29/1985

RPI 784

Carta-patente expirada

#21.1

Patente extinta em 16/08/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

09/25/1990

RPI 1034

Notificação para pagamento de retribuição

#13.1

06/26/1990

RPI 1024

Deferimento

#9.1

03/06/1990

RPI 1008

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