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Official data from INPI

PROCESSO DE FABRICAÇÃO DE VÁLVULA DE PANELA DE PRESSÃO

Em AnáliseInvention Patent

Application data

Number

PI8005379

Type

Invention Patent

Filing

08/26/1980

Publication

-

Progress at the INPI

  1. Filing08/26/80
  2. Publication
  3. Examination
  4. Allowance02/14/84
  5. Grant06/26/84
  6. Expired09/26/95

The letters patent expired on 09/26/1995: 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: 07/02/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Artefatos de Metal Tamás Ltda.

SP, BR

See this company's full portfolio

Inventors

T. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

201

07/02/1985

RPI 767

Pedido de licença voluntária

#17.1

11/06/1984

RPI 733

Republicação - classificação IPC

#15.11

09/18/1984

RPI 726

Concessão da patente

#16.1

06/26/1984

RPI 714

Notificação para pagamento de retribuição

#13.1

06/05/1984

RPI 711

Deferimento

#9.1

02/14/1984

RPI 695

Republicação - classificação IPC

#15.11

01/10/1984

RPI 690

Exigência - art. 36 da LPI

#6.1

09/06/1983

RPI 672

Carta-patente expirada

#21.1

09/26/1995

RPI 1295

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