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Official data from INPI

SISTEMA DE IGNICAO PARA MAQUINAS DE COMBUSTAO INTERNA

ConcedidaInvention Patent

Application data

Number

PI7901638

Type

Invention Patent

Filing

03/18/1978

Publication

-

Progress at the INPI

  1. Filing03/18/78
  2. Publication
  3. Examination12/15/81
  4. Allowance01/25/83
  5. Grant07/26/83
  6. Expired06/21/94

The letters patent expired on 06/21/1994: 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: 07/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

BOSCH GMBH ROBERT

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Inventors

E. K. (pessoa física)

I. J. (pessoa física)

K. R. (pessoa física)

W. G. (pessoa física)

W. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1983

RPI 666

Notificação para pagamento de retribuição

#13.1

05/31/1983

RPI 658

Deferimento

#9.1

01/25/1983

RPI 640

Exigência - art. 36 da LPI

#6.1

07/27/1982

RPI 614

Solicitação de exame técnico

#4.1

12/15/1981

RPI 582

Carta-patente expirada

#21.1

06/21/1994

RPI 1229

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