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Official data from INPI

PROCESSO PARA UNIR PEÇAS TUBULARES DE METAL POR SOLDAGEM POR FORJA/DIFUSÃO

DeferidaInvention Patent

Application data

Number

PI8407111

Type

Invention Patent

Filing

10/12/1984

Publication

08/27/1985

Progress at the INPI

  1. Filing10/12/84
  2. Publication08/27/85
  3. Examination06/30/87
  4. Allowance09/05/89
  5. Grant04/24/90
  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: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. M. (pessoa física)

NO

Inventors

P. M. (pessoa física)

NO

Technical data

IPC Classification

Priority claims

NO

833729 · 10/13/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

09/05/1989

RPI 985

Solicitação de exame técnico

#4.1

06/30/1987

RPI 871

Notificação de entrada na fase nacional - PCT

#1.3

08/27/1985

RPI 775

Carta-patente expirada

#21.1

Patente extinta em 12/10/99

07/08/2008

RPI 1957

Concessão da patente

#16.1

04/24/1990

RPI 1015

Notificação para pagamento de retribuição

#13.1

01/09/1990

RPI 1001

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