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Official data from INPI

PROCESSO PARA SOLDAGEM POR DIFUSÃO

Em AnáliseInvention Patent

Application data

Number

PI8306889

Type

Invention Patent

Filing

04/13/1983

Publication

03/07/1984

Progress at the INPI

  1. Filing04/13/83
  2. Publication03/07/84
  3. Examination01/21/86
  4. Allowance07/11/89
  5. Grant02/06/90
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 11/14/1989. 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

82.1208 · 04/13/1982

NO

83.1295 · 04/12/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação para pagamento de retribuição

#13.1

11/14/1989

RPI 995

Deferimento

#9.1

07/11/1989

RPI 977

Exigência - art. 36 da LPI

#6.1

12/13/1988

RPI 947

4.1.2

03/11/1986

RPI 803

Solicitação de exame técnico

#4.1

01/21/1986

RPI 796

Notificação de entrada na fase nacional - PCT

#1.3

03/07/1984

RPI 698

Carta-patente expirada

#21.1

Patente extinta em 13/04/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

02/06/1990

RPI 1005

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