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Official data from INPI

DISPOSITIVO DE VEDAÇÃO PARA FLUXÔMETRO

PublicadaUtility Model

Application data

Number

MU6601543

Type

Utility Model

Filing

08/25/1986

Publication

05/03/1988

Progress at the INPI

  1. Filing08/25/86
  2. Publication05/03/88
  3. Examination08/07/90
  4. Allowance04/16/91
  5. Grant12/31/91
  6. Expired09/17/96

The letters patent expired on 09/17/1996: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 05/03/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. Takaoka Indústria e Comércio Ltda

SP, BR

See this company's full portfolio

Inventors

K. T. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

05/03/1988

RPI 915

Pedido de patente depositado

#2.1

03/31/1987

RPI 858

Carta-patente expirada

#21.1

09/17/1996

RPI 1346

Concessão da patente

#16.1

12/31/1991

RPI 1100

Notificação para pagamento de retribuição

#13.1

07/30/1991

RPI 1078

Deferimento

#9.1

04/16/1991

RPI 1063

Solicitação de exame técnico

#4.1

08/07/1990

RPI 1027

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