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Official data from INPI

PANELA DE PRESSÃO

ConcedidaInvention Patent

Application data

Number

PI8404247

Type

Invention Patent

Filing

08/24/1984

Publication

07/23/1985

Progress at the INPI

  1. Filing08/24/84
  2. Publication07/23/85
  3. Examination01/06/87
  4. Allowance08/09/88
  5. Grant10/24/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

AMC International Alfa Metalcraft Corporation Ag.

CH

See this company's full portfolio

Inventors

H. S. (pessoa física)

DE

R. B. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

4 699/83 · 08/25/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

12/06/1988

RPI 946

Deferimento

#9.1

08/09/1988

RPI 929

6.2

09/22/1987

RPI 883

Solicitação de exame técnico

#4.1

01/06/1987

RPI 846

Publicação do pedido de patente

#3.1

07/23/1985

RPI 770

Pedido de patente depositado

#2.1

10/30/1984

RPI 732

Carta-patente expirada

#21.1

Patente extinta em 24/08/99

07/08/2008

RPI 1957

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