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Official data from INPI

FILTRO DE AR TIPO GAVETA

Em AnáliseUtility Model

Application data

Number

MU6601972

Type

Utility Model

Filing

10/20/1986

Publication

07/14/1987

Progress at the INPI

  1. Filing10/20/86
  2. Publication07/14/87
  3. Examination09/01/87
  4. Allowance04/10/90
  5. Grant07/30/91
  6. Expired07/01/08

The letters patent expired on 07/01/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 09/01/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Springer Carrier do Nordeste S/A

SP, BR

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Inventors

M. A. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/01/1987

RPI 880

Publicação antecipada

#3.2

07/14/1987

RPI 873

Pedido de patente depositado

#2.1

04/28/1987

RPI 862

Carta-patente expirada

#21.1

Patente extinta em 20/10/1996

07/01/2008

RPI 1956

204

03/16/1993

RPI 1163

Pedido de licença voluntária

#17.1

06/09/1992

RPI 1123

Concessão da patente

#16.1

07/30/1991

RPI 1078

110

04/23/1991

RPI 1064

Recurso

#12.1

09/04/1990

RPI 1031

Deferimento

#9.1

04/10/1990

RPI 1013

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