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Official data from INPI

COMPOSICAO DE CONCRETO E PROCESSO PARA INIBIR DE MODO SUBSTANCIALMENTE COMPLETO A CORROSAO DE PECAS DE METAL CONTIDAS EM UMA FORMACAO DE CONCRETO

Em AnáliseInvention Patent

Application data

Number

PI8001250

Type

Invention Patent

Filing

03/06/1979

Publication

-

Progress at the INPI

  1. Filing03/06/79
  2. Publication
  3. Examination
  4. Allowance12/16/86
  5. Grant08/25/87
  6. Terminated09/26/89

The patent was granted on 08/25/1987 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

GRACE W R & CO

See this company's full portfolio

Inventors

G. J. (pessoa física)

R. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

09/26/1989

RPI 988

Concessão da patente

#16.1

08/25/1987

RPI 879

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

Exigência - art. 36 da LPI

#6.1

03/04/1986

RPI 802

Conhecimento de parecer técnico

#7.1

06/12/1984

RPI 712

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