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Official data from INPI

PROCESSO PARA CONTROLE DE VALVULA DE UMA PANELA DE FUNDICAO

ConcedidaInvention Patent

Application data

Number

PI7802384

Type

Invention Patent

Filing

04/19/1977

Publication

-

Progress at the INPI

  1. Filing04/19/77
  2. Publication
  3. Examination
  4. Allowance07/30/85
  5. Grant03/25/86
  6. Expired07/06/93

The letters patent expired on 07/06/1993: 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: 03/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MITSUBISHI HEAVY IND LTD

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Inventors

F. S. (pessoa física)

S. T. (pessoa física)

S. S. (pessoa física)

Y. Y. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/25/1986

RPI 805

Notificação para pagamento de retribuição

#13.1

11/26/1985

RPI 788

Republicação - classificação IPC

#15.11

07/30/1985

RPI 771

Deferimento

#9.1

07/30/1985

RPI 771

Republicação - classificação IPC

#15.11

04/17/1984

RPI 704

Republicação - classificação IPC

#15.11

02/07/1984

RPI 694

6.2

12/22/1981

RPI 583

Carta-patente expirada

#21.1

07/06/1993

RPI 1179

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