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Official data from INPI

Aparelho de controle de limpeza

Arquivada/ExtintaInvention Patent

Application data

Number

PI9103894

Type

Invention Patent

Filing

09/10/1991

Publication

05/26/1992

Progress at the INPI

  1. Filing09/10/91
  2. Publication05/26/92
  3. Examination09/29/92
  4. Allowance05/20/97
  5. Grant04/28/98
  6. Expired06/11/13

The letters patent expired on 06/11/2013: 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: 06/11/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Matsushita Electric Industrial Co., Ltd

JP

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Inventors

E. T. (pessoa física)

JP

H. F. (pessoa física)

JP

Technical data

IPC Classification

Priority claims

JP

2-242083 · 09/11/1990

JP

2-242084 · 09/11/1990

JP

3-54517 · 03/19/1991

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinte em 10/09/2011

06/11/2013

RPI 2214

Concessão da patente

#16.1

04/28/1998

RPI 1427

Deferimento

#9.1

05/20/1997

RPI 1381

Solicitação de exame técnico

#4.1

09/29/1992

RPI 1139

Publicação do pedido de patente

#3.1

05/26/1992

RPI 1121

Pedido de patente depositado

#2.1

10/22/1991

RPI 1090

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