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Official data from INPI

DISPOSITIVO PARA DRENAGEM DE TÓRAX

Prazo de SigiloInvention Patent

Application data

Number

PI8904226

Type

Invention Patent

Filing

08/23/1989

Publication

10/09/1990

Progress at the INPI

  1. Filing08/23/89
  2. Publication10/09/90
  3. Examination02/02/93
  4. Allowance02/21/95
  5. Grant11/28/95
  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

Universidade Estadual de Campinas - Unicamp

SP, BR

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Inventors

A. T. (pessoa física)

BR

G. B. (pessoa física)

BR

Technical data

IPC Classification

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 23/08/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

11/28/1995

RPI 1304

Notificação para pagamento de retribuição

#13.1

07/11/1995

RPI 1284

Deferimento

#9.1

02/21/1995

RPI 1264

Solicitação de exame técnico

#4.1

02/02/1993

RPI 1157

Publicação antecipada

#3.2

10/09/1990

RPI 1036

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