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Official data from INPI

PERMUTADOR AUTOPURGADOR PARA CIRCUITOS DE RESFRIAMENTO DE MOTORES

ConcedidaInvention Patent

Application data

Number

PI8007407

Type

Invention Patent

Filing

03/03/1980

Publication

-

Progress at the INPI

  1. Filing03/03/80
  2. Publication
  3. Examination10/13/81
  4. Allowance06/12/84
  5. Grant12/26/84
  6. Expired12/26/95

The letters patent expired on 12/26/1995: 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: 12/26/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. C. (pessoa física)

FR

Inventors

M. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/26/1984

RPI 740

Notificação para pagamento de retribuição

#13.1

10/02/1984

RPI 728

Deferimento

#9.1

06/12/1984

RPI 712

Exigência - art. 36 da LPI

#6.1

10/25/1983

RPI 679

Solicitação de exame técnico

#4.1

03/02/1982

RPI 593

Solicitação de exame técnico

#4.1

10/13/1981

RPI 573

Carta-patente expirada

#21.1

12/26/1995

RPI 1308

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