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Official data from INPI

PROCESSO PARA DESCARBURIZAR METAL FUNDIDO COM ELEVADO TEOR DE CROMO

Arquivada/ExtintaInvention PatentPCT · JP1988000909

Application data

Number

PI8807195

Type

Invention Patent

Filing

09/09/1988

Publication

03/01/1990

PCT

JP1988000909

Progress at the INPI

  1. Filing09/09/88
  2. Publication03/01/90
  3. Examination05/22/90
  4. Allowance08/25/98
  5. Grant02/23/99
  6. Expired12/18/12

The letters patent expired on 12/18/2012: 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: 12/18/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

N. C. (pessoa física)

JP

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Inventors

H. T. (pessoa física)

JP

K. I. (pessoa física)

JP

K. T. (pessoa física)

JP

M. K. (pessoa física)

JP

S. I. (pessoa física)

JP

Technical data

Priority claims

JP

62-224048 · 09/09/1987

JP

62-231042 · 09/17/1987

JP

62-285444 · 11/13/1987

JP

62-330979 · 12/26/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 23/02/2009

12/18/2012

RPI 2189

Concessão da patente

#16.1

02/23/1999

RPI 1468

Deferimento

#9.1

08/25/1998

RPI 1444

Exigência - art. 36 da LPI

#6.1

09/16/1997

RPI 1398

6.2

05/24/1994

RPI 1225

Solicitação de exame técnico

#4.1

05/22/1990

RPI 1019

Notificação de entrada na fase nacional - PCT

#1.3

03/01/1990

RPI 1007

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