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Official data from INPI

UNIDADE DE SOLDAGEM PARA UM PRIMEIRO E UM SEGUNDO TUBOS METÁLICOS INSERIDOS UM DENTRO DO OUTRO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9101990

Type

Invention Patent

Filing

05/15/1991

Publication

12/24/1991

Progress at the INPI

  1. Filing05/15/91
  2. Publication12/24/91
  3. Examination03/22/94
  4. Allowance09/01/98
  5. Grant12/29/98
  6. Expired06/04/13

The letters patent expired on 06/04/2013: 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: 06/04/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. B. (pessoa física)

IT

Inventors

B. B. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

20346 A/90 · 05/17/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 15/05/2011

06/04/2013

RPI 2213

Concessão da patente

#16.1

12/29/1998

RPI 1460

Deferimento

#9.1

09/01/1998

RPI 1445

6.2

03/26/1996

RPI 1321

Solicitação de exame técnico

#4.1

03/22/1994

RPI 1216

Publicação do pedido de patente

#3.1

12/24/1991

RPI 1099

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