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Official data from INPI

PILÃO DUPLO

Em AnáliseInvention Patent

Application data

Number

PI8701992

Type

Invention Patent

Filing

03/31/1987

Publication

10/25/1988

Progress at the INPI

  1. Filing03/31/87
  2. Publication10/25/88
  3. Examination10/24/89
  4. Allowance03/16/93
  5. Grant07/27/93
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Philips do Brasil Ltda

SP, BR

See this company's full portfolio

Inventors

P. D. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/24/1989

RPI 992

Publicação do pedido de patente

#3.1

10/25/1988

RPI 940

Pedido de patente depositado

#2.1

07/28/1987

RPI 875

Carta-patente expirada

#21.1

Patente extinta em 31/03/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

07/27/1993

RPI 1182

Notificação para pagamento de retribuição

#13.1

07/06/1993

RPI 1179

Deferimento

#9.1

03/16/1993

RPI 1163

102

02/02/1993

RPI 1157

Pedido de recurso

#12.3

07/30/1991

RPI 1078

11.3

03/26/1991

RPI 1060

Exigência - art. 36 da LPI

#6.1

09/25/1990

RPI 1034

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