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Official data from INPI

VALVULA

Em AnáliseInvention Patent

Application data

Number

PI8100676

Type

Invention Patent

Filing

02/05/1981

Publication

10/05/1982

Progress at the INPI

  1. Filing02/05/81
  2. Publication10/05/82
  3. Examination08/09/83
  4. Allowance04/17/84
  5. Grant01/29/85
  6. Invalidated12/17/85

The patent was invalidated by the INPI in an administrative invalidity proceeding. Protection no longer exists.

Talk to a specialist

Latest action published by the INPI: 12/17/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NORDON IND METALURG SA [BR]

Inventors

F. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

200

12/17/1985

RPI 791

Pedido de licença voluntária

#17.1

07/16/1985

RPI 769

Concessão da patente

#16.1

01/29/1985

RPI 745

Notificação para pagamento de retribuição

#13.1

08/07/1984

RPI 720

Deferimento

#9.1

04/17/1984

RPI 704

Solicitação de exame técnico

#4.1

08/09/1983

RPI 668

Publicação do pedido de patente

#3.1

10/05/1982

RPI 624

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