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Official data from INPI

PROCESSO FOTOLITICO DE PRODUÇÃO DE HIDROGÊNIO A PARTIR DA ÁGUA, CATALISADOR E RESPECTIVO PROCESSO DE PREPARAÇÃO.

Em AnáliseInvention Patent

Application data

Number

PI8005646

Type

Invention Patent

Filing

09/04/1980

Publication

-

Progress at the INPI

  1. Filing09/04/80
  2. Publication
  3. Examination05/24/83
  4. Allowance01/15/85
  5. Grant08/27/85
  6. Terminated07/12/88

The patent was granted on 08/27/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 07/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Engelhard Minerals & Chemicals Corporation.

Inventors

G. M. (pessoa física)

K. J. (pessoa física)

Technical data

IPC Classification

Priority claims

GB

7931250 · 09/08/1979

GB

8022338 · 07/08/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/12/1988

RPI 925

Concessão da patente

#16.1

08/27/1985

RPI 775

Notificação para pagamento de retribuição

#13.1

05/07/1985

RPI 759

Deferimento

#9.1

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

04/03/1984

RPI 702

Solicitação de exame técnico

#4.1

05/24/1983

RPI 657

14.1

05/25/1982

RPI 605

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