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Official data from INPI

APARELHO E PROCESSO PARA PRODUZIR UM METAL REFRATÁRIO PURIFICADO A PARTIR DE UM CLORETO DO MESMO

ConcedidaInvention Patent

Application data

Number

PI8302825

Type

Invention Patent

Filing

05/27/1983

Publication

01/24/1984

Progress at the INPI

  1. Filing05/27/83
  2. Publication01/24/84
  3. Examination05/06/86
  4. Allowance04/25/89
  5. Grant11/28/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. I. (pessoa física)

JP

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Inventors

H. I. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

189846/82 · 10/28/1982

JP

93698/82 · 05/31/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

08/22/1989

RPI 983

Deferimento

#9.1

04/25/1989

RPI 966

Exigência - art. 36 da LPI

#6.1

10/04/1988

RPI 937

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

05/06/1986

RPI 811

Publicação do pedido de patente

#3.1

01/24/1984

RPI 692

Pedido de patente depositado

#2.1

07/12/1983

RPI 664

Carta-patente expirada

#21.1

Patente extinta em 27/05/98

07/01/2008

RPI 1956

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