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Official data from INPI

DISPOSITIVO PARA VENTILAÇÃO

Em AnáliseUtility Model

Application data

Number

MU6501220

Type

Utility Model

Filing

08/22/1985

Publication

03/31/1987

Progress at the INPI

  1. Filing08/22/85
  2. Publication03/31/87
  3. Examination09/05/89
  4. Allowance04/10/90
  5. Grant02/26/91
  6. Expired09/12/95

The letters patent expired on 09/12/1995: 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: 09/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. B. (pessoa física)

SP, BR

Inventors

M. B. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/05/1989

RPI 985

Publicação do pedido de patente

#3.1

03/31/1987

RPI 858

Pedido de patente depositado

#2.1

11/05/1985

RPI 785

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

Concessão da patente

#16.1

02/26/1991

RPI 1056

Retificação

#15.6

11/27/1990

RPI 1043

15.4

08/28/1990

RPI 1030

Notificação para pagamento de retribuição

#13.1

08/14/1990

RPI 1028

Deferimento

#9.1

04/10/1990

RPI 1013

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