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Official data from INPI

EXTENSOR DE IGNIÇÃO ISOLADO E SISTEMA DE IGNIÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8507173

Type

Invention Patent

Filing

04/01/1985

Publication

05/05/1987

Progress at the INPI

  1. Filing04/01/85
  2. Publication05/05/87
  3. Examination09/13/88
  4. Allowance05/28/91
  5. Grant02/04/92
  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.

Talk to a specialist

Latest action published by the INPI: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Caterpillar, Inc.

US

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Inventors

J. S. (pessoa física)

US

P. B. (pessoa física)

US

R. G. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

696.822 · 01/31/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/13/1988

RPI 934

Notificação de entrada na fase nacional - PCT

#1.3

05/05/1987

RPI 863

Carta-patente expirada

#21.1

Patente extinta em 01/04/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

02/04/1992

RPI 1105

Notificação para pagamento de retribuição

#13.1

09/10/1991

RPI 1084

Deferimento

#9.1

05/28/1991

RPI 1069

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