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Official data from INPI

PROCESSO E MISTURA GASOSA PARA SOLDAGEM A ARCO ELÉTRICO COM GÁS

DeferidaInvention Patent

Application data

Number

PI8304110

Type

Invention Patent

Filing

08/01/1983

Publication

04/24/1984

Progress at the INPI

  1. Filing08/01/83
  2. Publication04/24/84
  3. Examination07/29/86
  4. Allowance10/17/89
  5. Grant04/24/90
  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: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

P. P. I. Performance Process International, N.V.

NL

Inventors

J. C. (pessoa física)

CA

Technical data

IPC Classification

Priority claims

US

404.722 · 08/03/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/17/1989

RPI 991

Exigência - art. 36 da LPI

#6.1

05/02/1989

RPI 967

6.2

03/04/1987

RPI 854

Solicitação de exame técnico

#4.1

07/29/1986

RPI 823

Publicação do pedido de patente

#3.1

04/24/1984

RPI 705

Pedido de patente depositado

#2.1

10/11/1983

RPI 677

Carta-patente expirada

#21.1

Patente extinta em 01/08/98

07/01/2008

RPI 1956

Republicação - classificação IPC

#15.11

02/26/1991

RPI 1056

Concessão da patente

#16.1

04/24/1990

RPI 1015

Notificação para pagamento de retribuição

#13.1

02/13/1990

RPI 1006

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