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Official data from INPI

DISPOSITIVO COM UM TUBO ENVOLVENTE, NO QUAL ESTÁ INSERIDO AO MENOS UM ELEMENTO EMBUTIDO

ConcedidaInvention Patent

Application data

Number

PI8203968

Type

Invention Patent

Filing

07/08/1982

Publication

06/28/1983

Progress at the INPI

  1. Filing07/08/82
  2. Publication06/28/83
  3. Examination04/09/85
  4. Allowance04/22/87
  5. Grant09/29/87
  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: 09/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Sulzer Brothers Limited

CH

See this company's full portfolio

Inventors

W. M. (pessoa física)

US

Technical data

Priority claims

CH

4 922/81 · 07/30/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/29/1987

RPI 884

Deferimento

#9.1

04/22/1987

RPI 861

Exigência - art. 36 da LPI

#6.1

08/26/1986

RPI 827

Exigência - art. 36 da LPI

#6.1

12/03/1985

RPI 789

Solicitação de exame técnico

#4.1

04/09/1985

RPI 755

Publicação do pedido de patente

#3.1

06/28/1983

RPI 662

Pedido de patente depositado

#2.1

08/24/1982

RPI 618

Carta-patente expirada

#21.1

Patente extinta em 08/07/97

07/01/2008

RPI 1956

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