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Official data from INPI

MACHO DE AREIA CONSUMIVEL E PROCESSO PARA FORMACAO DE UMA PECA FUNDIDA EM MATRIZ TENDO UMA REGIAO RECORTADA A PARTIR DE METAL FUNDIDO UTILIZANDO O DITO MACHO

ConcedidaInvention Patent

Application data

Number

PI8006285

Type

Invention Patent

Filing

10/01/1979

Publication

-

Progress at the INPI

  1. Filing10/01/79
  2. Publication
  3. Examination07/12/83
  4. Allowance12/16/86
  5. Grant07/28/87
  6. Terminated08/02/94

The patent was granted on 07/28/1987 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NL INDUSTRIES INC

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Inventors

P. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

05/05/1987

RPI 863

Deferimento

#9.1

12/16/1986

RPI 843

14.1

05/27/1986

RPI 814

Conhecimento de parecer técnico

#7.1

01/15/1985

RPI 743

Exigência - art. 36 da LPI

#6.1

01/03/1984

RPI 689

Solicitação de exame técnico

#4.1

07/12/1983

RPI 664

Anuidade - prazo legal encerrado

#18.2

08/02/1994

RPI 1235

Licença compulsória (variante)

#20.2

12/29/1992

RPI 1152

20.3

11/26/1991

RPI 1095

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