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Official data from INPI

Processo para limpeza de metal em fusão

Arquivada/ExtintaInvention Patent

Application data

Number

PI8905068

Type

Invention Patent

Filing

10/05/1989

Publication

05/08/1990

Progress at the INPI

  1. Filing10/05/89
  2. Publication05/08/90
  3. Examination12/11/90
  4. Allowance09/23/97
  5. Grant07/28/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. C. (pessoa física)

JP

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Inventors

H. M. (pessoa física)

JP

S. S. (pessoa física)

JP

T. I. (pessoa física)

JP

Y. K. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

031105/89 · 02/13/1989

JP

250806/88 · 10/06/1988

JP

250807/88 · 10/06/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 05/10/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

07/28/1998

RPI 1440

Deferimento

#9.1

09/23/1997

RPI 1399

Exigência - art. 36 da LPI

#6.1

12/24/1996

RPI 1360

6.2

03/12/1996

RPI 1319

Solicitação de exame técnico

#4.1

12/11/1990

RPI 1045

Publicação do pedido de patente

#3.1

05/08/1990

RPI 1017

Pedido de patente depositado

#2.1

03/01/1990

RPI 1007

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