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Official data from INPI

DISPOSITIVO CONTROLADOR DE COMBUSTÃO.

Em AnáliseInvention Patent
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Application data

Number

PI8504961

Type

Invention Patent

Filing

10/03/1985

Publication

07/22/1986
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Progress at the INPI

  1. Filing10/03/85
  2. Publication07/22/86
  3. Examination11/01/88
  4. Allowance03/01/90
  5. Grant09/25/90
  6. Expired07/15/08

The letters patent expired on 07/15/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 12/20/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

JP

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Inventors

S. K. (pessoa física)

JP

Technical data

IPC Classification

F23N 5/12F23Q 3/00

Priority claims

JP

226165 · 10/27/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

12/20/1988

RPI 948

Solicitação de exame técnico

#4.1

11/01/1988

RPI 941

Publicação do pedido de patente

#3.1

07/22/1986

RPI 822

Pedido de patente depositado

#2.1

12/17/1985

RPI 791

Carta-patente expirada

#21.1

Patente extinta em 03/10/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

09/25/1990

RPI 1034

Notificação para pagamento de retribuição

#13.1

06/19/1990

RPI 1023

Deferimento

#9.1

03/01/1990

RPI 1007

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