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Official data from INPI

VENTILADOR DE FLUXO CONTÍNUO E MÉTODO DE MONITORAÇÃO DO MESMO

Prazo de SigiloInvention Patent

Application data

Number

PI8806463

Type

Invention Patent

Filing

12/05/1988

Publication

11/05/1991

Progress at the INPI

  1. Filing12/05/88
  2. Publication11/05/91
  3. Examination03/24/92
  4. Allowance11/09/93
  5. Grant10/25/94
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 04/18/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Oxigel Materiais Hospitalares Indústria e Comércio Ltda

SP, BR

See this company's full portfolio

Inventors

A. L. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de patente depositado

#2.1

04/18/1989

RPI 965

Carta-patente expirada

#21.1

Patente extinta em 05/12/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

10/25/1994

RPI 1247

Notificação para pagamento de retribuição

#13.1

03/29/1994

RPI 1217

Notificação para pagamento de retribuição

#13.1

03/22/1994

RPI 1216

Deferimento

#9.1

11/09/1993

RPI 1197

Solicitação de exame técnico

#4.1

03/24/1992

RPI 1112

Publicação antecipada

#3.2

11/05/1991

RPI 1092

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