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Official data from INPI

DISPOSITIVOS PARA LIBERAÇÃO DE AGENTE(S) ATIVO(S), E USO DOS MESMOS.

Em AnáliseInvention Patent

Application data

Number

PI8500551

Type

Invention Patent

Filing

02/07/1985

Publication

09/24/1985

Progress at the INPI

  1. Filing02/07/85
  2. Publication09/24/85
  3. Examination06/03/86
  4. Allowance11/03/93
  5. Grant02/16/94
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 06/03/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pfizer, Inc.

US

See this company's full portfolio

Inventors

J. C. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/03/1986

RPI 815

Publicação do pedido de patente

#3.1

09/24/1985

RPI 779

Pedido de patente depositado

#2.1

04/30/1985

RPI 758

Carta-patente expirada

#21.1

Patente extinta em 07/02/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

02/16/1994

RPI 1211

100

11/03/1993

RPI 1196

Indeferimento (variante)

#9.2.3

08/24/1993

RPI 1186

Petição de recurso

#12.2

04/27/1993

RPI 1169

Indeferimento (variante)

#9.2.3

03/09/1993

RPI 1162

Indeferimento

#9.2

01/26/1993

RPI 1156

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