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Official data from INPI

DISPOSITIVO PARA VENTILACAO EM TRANSPORTES COLETIVOS

Arquivada/ExtintaUtility Model

Application data

Number

MU6100684

Type

Utility Model

Filing

05/27/1981

Publication

01/04/1983

Progress at the INPI

  1. Filing05/27/81
  2. Publication01/04/83
  3. Abandoned07/17/84
  4. Allowance
  5. Grant
  6. In force

The application was abandoned at the INPI. The case ended without a patent and the technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/02/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NASCIMENTO JOAO GONCALVES DO [BR]

Inventors

N. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

12/02/1986

RPI 841

8.1

08/13/1985

RPI 773

Exigência - art. 36 da LPI

#6.1

03/19/1985

RPI 752

Solicitação de exame técnico

#4.1

07/17/1984

RPI 717

Publicação do pedido de patente

#3.1

01/04/1983

RPI 637

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