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Official data from INPI

DISPOSITIVO DE DRENAGEM

Arquivada/ExtintaInvention Patent

Application data

Number

PI8904896

Type

Invention Patent

Filing

09/27/1989

Publication

05/08/1990

Progress at the INPI

  1. Filing09/27/89
  2. Publication05/08/90
  3. Examination12/04/90
  4. Allowance11/28/95
  5. Grant07/30/96
  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: 12/22/2009. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

G. C. (pessoa física)

US

Pfizer Hospital Products Group, Inc.

US

Inventors

F. J. (pessoa física)

US

Q. F. (pessoa física)

US

R. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

249.808 · 09/27/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 27/09/2004

12/22/2009

RPI 2033

Transferência deferida

#25.1

Transferido de: Deknatel Technology Corporation

06/07/2005

RPI 1796

Transferência deferida

#25.1

Transferido de: Pfizer Hospital Products Group Inc.

05/24/2005

RPI 1794

Concessão da patente

#16.1

07/30/1996

RPI 1339

Deferimento

#9.1

11/28/1995

RPI 1304

Exigência - art. 36 da LPI

#6.1

05/02/1995

RPI 1274

6.2

08/30/1994

RPI 1239

Solicitação de exame técnico

#4.1

12/04/1990

RPI 1044

Publicação do pedido de patente

#3.1

05/08/1990

RPI 1017

Pedido de patente depositado

#2.1

03/20/1990

RPI 1010

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