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Official data from INPI

PROCESSO DE CONFORMAÇÃO DIRETA DE PROJÉTEIS PERFURANTES EM LIGAS DE TUNGSTÊNIO DE ALTA DENSIDADE

Prazo de SigiloInvention Patent

Application data

Number

PI8903010

Type

Invention Patent

Filing

06/21/1989

Publication

02/06/1990

Progress at the INPI

  1. Filing06/21/89
  2. Publication02/06/90
  3. Examination10/29/91
  4. Allowance01/02/96
  5. Grant09/24/96
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 08/01/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. B. (pessoa física)

FR

Inventors

J. N. (pessoa física)

FR

R. S. (pessoa física)

FR

Technical data

Priority claims

FR

8808888 · 06/22/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

08/01/1989

RPI 980

Carta-patente expirada

#21.1

Patente extinta em 21/06/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

09/24/1996

RPI 1347

Deferimento

#9.1

01/02/1996

RPI 1309

Exigência - art. 36 da LPI

#6.1

03/07/1995

RPI 1266

Solicitação de exame técnico

#4.1

10/29/1991

RPI 1091

Publicação do pedido de patente

#3.1

02/06/1990

RPI 1005

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