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Official data from INPI

DISPOSITIVO PARA A UNIÃO RÁPIDA E ESTANQUE DE TUBOS

Prazo de SigiloInvention Patent

Application data

Number

PI8903978

Type

Invention Patent

Filing

08/08/1989

Publication

03/20/1990

Progress at the INPI

  1. Filing08/08/89
  2. Publication03/20/90
  3. Examination10/23/90
  4. Allowance01/18/94
  5. Grant06/28/94
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Degremont

FR

See this company's full portfolio

Inventors

J. B. (pessoa física)

FR

O. F. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

FR

88 10 744 · 08/09/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

11/28/1989

RPI 997

Carta-patente expirada

#21.1

Patente extinta em 08/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

06/28/1994

RPI 1230

Notificação para pagamento de retribuição

#13.1

05/10/1994

RPI 1223

Deferimento

#9.1

01/18/1994

RPI 1207

Exigência - art. 36 da LPI

#6.1

05/11/1993

RPI 1171

Pedido de certificado de adição de invenção

#5.1

01/29/1991

RPI 1052

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

Publicação do pedido de patente

#3.1

03/20/1990

RPI 1010

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