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Official data from INPI

MÉTODO PARA UNIR DUAS SEÇÕES DE ELETRODO; COLUNA DE ELETRODO

DeferidaInvention Patent

Application data

Number

PI8303454

Type

Invention Patent

Filing

06/28/1983

Publication

02/07/1984

Progress at the INPI

  1. Filing06/28/83
  2. Publication02/07/84
  3. Examination05/14/85
  4. Allowance10/24/89
  5. Grant05/29/90
  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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

H. S. (pessoa física)

US

H. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

393,989 · 06/30/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/24/1989

RPI 992

Exigência - art. 36 da LPI

#6.1

04/25/1989

RPI 966

6.2

02/24/1987

RPI 853

Solicitação de exame técnico

#4.1

05/14/1985

RPI 760

Publicação do pedido de patente

#3.1

02/07/1984

RPI 694

Pedido de patente depositado

#2.1

08/09/1983

RPI 668

Carta-patente expirada

#21.1

Patente extinta em 28/06/98

07/01/2008

RPI 1956

Concessão da patente

#16.1

05/29/1990

RPI 1020

Notificação para pagamento de retribuição

#13.1

03/01/1990

RPI 1007

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