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Official data from INPI

MOTOR DE IGNIÇÃO POR COMPRESSÃO DE COMBUSTÍVEL DUPLO

Em AnáliseInvention Patent

Application data

Number

PI8606841

Type

Invention Patent

Filing

08/21/1986

Publication

11/03/1987

Progress at the INPI

  1. Filing08/21/86
  2. Publication11/03/87
  3. Examination05/09/89
  4. Allowance02/19/91
  5. Grant06/30/92
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 05/09/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Gaspower International Limited

GB

Inventors

T. B. (pessoa física)

GB

Technical data

IPC Classification

Priority claims

GB

8521244 · 08/24/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

05/09/1989

RPI 968

Notificação de entrada na fase nacional - PCT

#1.3

11/03/1987

RPI 889

Carta-patente expirada

#21.1

Patente extinta em 21/08/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

06/30/1992

RPI 1126

Notificação para pagamento de retribuição

#13.1

12/24/1991

RPI 1099

Retificação

#15.6

10/29/1991

RPI 1091

Retificação

#15.3

07/02/1991

RPI 1074

Deferimento

#9.1

02/19/1991

RPI 1055

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