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Official data from INPI

CONTROLADOR DE CENTRO FECHADO PARA DISPOSITIVOS ACIONADOS POR PRESSAO DE FLUIDO

Em AnáliseInvention Patent

Application data

Number

PI7705635

Type

Invention Patent

Filing

08/24/1976

Publication

-

Progress at the INPI

  1. Filing08/24/76
  2. Publication
  3. Examination
  4. Allowance05/10/83
  5. Grant12/27/83
  6. Expired07/13/93

The letters patent expired on 07/13/1993: 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: 08/27/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

EATON CORP

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Inventors

Y. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.7

08/27/1985

RPI 775

Concessão da patente

#16.1

12/27/1983

RPI 688

Notificação para pagamento de retribuição

#13.1

09/27/1983

RPI 675

Deferimento

#9.1

05/10/1983

RPI 655

Conhecimento de parecer técnico

#7.1

05/11/1982

RPI 603

Carta-patente expirada

#21.1

07/13/1993

RPI 1180

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