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Official data from INPI

CIRCULADOR DE AR MÚLTIPLO E DESMEMBRÁVEL

Em ExigênciaUtility Model

Application data

Number

MU6400935

Type

Utility Model

Filing

06/15/1984

Publication

11/18/1986

Progress at the INPI

  1. Filing06/15/84
  2. Publication11/18/86
  3. Examination10/04/88
  4. Allowance10/30/90
  5. Grant05/28/91
  6. Expired10/04/94

The letters patent expired on 10/04/1994: 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: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Black & Decker Inc.

US

General Electric do Brasil S.A.

SP, BR

See this company's full portfolio

Inventors

J. S. (pessoa física)

BR

L. V. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

09/26/1989

RPI 988

Solicitação de exame técnico

#4.1

10/04/1988

RPI 937

Publicação do pedido de patente

#3.1

11/18/1986

RPI 839

14.1

07/29/1986

RPI 823

Pedido de patente depositado

#2.1

08/21/1984

RPI 722

Carta-patente expirada

#21.1

10/04/1994

RPI 1244

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

02/13/1991

RPI 1054

Deferimento

#9.1

10/30/1990

RPI 1039

Exigência - art. 36 da LPI

#6.1

04/10/1990

RPI 1013

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