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Official data from INPI

MOTOR DE COMBUSTÃO INTERNA

Em AnáliseInvention Patent

Application data

Number

PI8702316

Type

Invention Patent

Filing

05/06/1987

Publication

02/17/1988

Progress at the INPI

  1. Filing05/06/87
  2. Publication02/17/88
  3. Examination04/12/88
  4. Allowance02/05/91
  5. Grant09/24/91
  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: 04/12/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nippon Clean Engine Research Institute Co., Ltd

JP

Inventors

S. O. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

61-144567 · 06/19/1986

JP

61-266751 · 11/11/1986

JP

61-313670 · 12/24/1986

JP

62-7940 · 01/15/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

04/12/1988

RPI 912

Publicação do pedido de patente

#3.1

02/17/1988

RPI 904

Pedido de patente depositado

#2.1

08/04/1987

RPI 876

Carta-patente expirada

#21.1

Patente extinta em 06/05/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

09/24/1991

RPI 1086

Notificação para pagamento de retribuição

#13.1

05/21/1991

RPI 1068

Deferimento

#9.1

02/05/1991

RPI 1053

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