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Official data from INPI

UNIDADE PURIFICADORA DE AR COMPRIMIDO

Prazo de SigiloInvention Patent

Application data

Number

PI8806719

Type

Invention Patent

Filing

12/15/1988

Publication

07/31/1990

Progress at the INPI

  1. Filing12/15/88
  2. Publication07/31/90
  3. Examination10/27/92
  4. Allowance09/27/94
  5. Grant06/27/95
  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

A. F. (pessoa física)

SP, BR

Inventors

A. F. (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 15/12/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

06/27/1995

RPI 1282

Notificação para pagamento de retribuição

#13.1

01/31/1995

RPI 1261

Deferimento

#9.1

09/27/1994

RPI 1243

Exigência - art. 36 da LPI

#6.1

03/08/1994

RPI 1214

Solicitação de exame técnico

#4.1

10/27/1992

RPI 1143

Publicação do pedido de patente

#3.1

07/31/1990

RPI 1026

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