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Official data from INPI

DISPOSITIVO PARA LIBERACAO DE UMA SUBSTANCIA GASOSA,ARRASTADA,DE UM LIQUIDO,E PROCESSO PARA REMOCAO DE SUBSTANCIAS GASOSAS DO ELETROLITO QUE ESCOA ATRAVES DE UMA SERIE DE CELULAS ELETROLITICAS

Em AnáliseInvention Patent

Application data

Number

PI7705733

Type

Invention Patent

Filing

08/30/1976

Publication

-

Progress at the INPI

  1. Filing08/30/76
  2. Publication
  3. Examination
  4. Allowance03/01/83
  5. Grant08/30/83
  6. Terminated12/15/87

The patent was granted on 08/30/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 12/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

DIAMOND SHAMROCK CORP

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Inventors

W. R. (pessoa física)

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

12/15/1987

RPI 895

Concessão da patente

#16.1

08/30/1983

RPI 671

Notificação para pagamento de retribuição

#13.1

06/21/1983

RPI 661

Deferimento

#9.1

03/01/1983

RPI 645

Exigência - art. 36 da LPI

#6.1

04/06/1982

RPI 598

15.0

11/03/1981

RPI 576

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