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Official data from INPI

PROCESSO DE CONTROLE DE REDUÇÃO EM UM PROCESSO DE MEMBRANA PERMEÁVEL

Prazo de SigiloInvention Patent

Application data

Number

PI8804223

Type

Invention Patent

Filing

08/19/1988

Publication

04/17/1990

Progress at the INPI

  1. Filing08/19/88
  2. Publication04/17/90
  3. Abandoned08/13/91
  4. Allowance
  5. Grant
  6. In force

The application was abandoned for failure to pay the annuities (art. 86 of the Brazilian IP Act). The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/31/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Praxair Technology, Inc

US

Union Carbide Chemicals And Plastics Company Inc

US

U. C. (pessoa física)

US

See this company's full portfolio

Inventors

M. C. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

01/31/1989

RPI 954

Arquivamento por falta de pagamento

#8.6

referente a 9ª, 10ª e 11ª anuidade

03/21/2000

RPI 1524

8.1

Referente a 9ª e 10ª anuidade

12/22/1998

RPI 1459

14.1

11/08/1994

RPI 1249

14.4

11/01/1994

RPI 1248

Solicitação de exame técnico

#4.1

08/13/1991

RPI 1080

Publicação do pedido de patente

#3.1

04/17/1990

RPI 1014

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