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Official data from INPI

CONJUNTO DE VÁLVULA DE RECIRCULAÇÃO DE GASES DE ESCAPE.

PublicadaInvention Patent

Application data

Number

PI8700939

Type

Invention Patent

Filing

02/26/1987

Publication

12/29/1987

Progress at the INPI

  1. Filing02/26/87
  2. Publication12/29/87
  3. Examination10/23/90
  4. Allowance05/24/94
  5. Grant12/27/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

G. C. (pessoa física)

US

Johnson & Johnson

US

See this company's full portfolio

Inventors

J. F. (pessoa física)

US

R. W. (pessoa física)

T. L. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

833.627 · 02/27/1986

US

833,803 · 02/28/1986

US

918,359 · 10/14/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/29/1987

RPI 897

Pedido de patente depositado

#2.1

06/16/1987

RPI 869

Carta-patente expirada

#21.1

Patente extinta em 26/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

12/27/1994

RPI 1256

Notificação para pagamento de retribuição

#13.1

09/27/1994

RPI 1243

Deferimento

#9.1

05/24/1994

RPI 1225

Exigência - art. 36 da LPI

#6.1

11/03/1993

RPI 1196

6.2

03/16/1993

RPI 1163

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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