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Official data from INPI

SISTEMA DE CONTROLE DE FUNCAO DE MOTOR DE COMBUSTAO INTERNA

Em AnáliseInvention Patent

Application data

Number

PI7806066

Type

Invention Patent

Filing

09/16/1977

Publication

-

Progress at the INPI

  1. Filing09/16/77
  2. Publication
  3. Examination
  4. Allowance08/10/82
  5. Grant02/22/83
  6. Expired05/03/94

The letters patent expired on 05/03/1994: 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

LUCAS INDUSTRIES LTD

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Inventors

H. W. (pessoa física)

S. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

07/28/1987

RPI 875

Concessão da patente

#16.1

02/22/1983

RPI 644

Notificação para pagamento de retribuição

#13.1

12/28/1982

RPI 636

Deferimento

#9.1

08/10/1982

RPI 616

Exigência - art. 36 da LPI

#6.1

01/12/1982

RPI 586

Carta-patente expirada

#21.1

05/03/1994

RPI 1222

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