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Official data from INPI

APERFEIÇOAMENTO EM FLUXÔMETRO TURBO-FOTOELÉTRICO PARA REGIMES CONTÍNUOS E PULSADOS.

ConcedidaUtility Model

Application data

Number

MU6101555

Type

Utility Model

Filing

10/29/1981

Publication

05/31/1983

Progress at the INPI

  1. Filing10/29/81
  2. Publication05/31/83
  3. Examination09/20/83
  4. Allowance05/07/85
  5. Grant12/31/85
  6. Expired11/22/94

The letters patent expired on 11/22/1994: 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: 12/31/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

W B Eletrônica Ltda

Inventors

B. [. (pessoa física)

G. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/31/1985

RPI 793

Notificação para pagamento de retribuição

#13.1

08/27/1985

RPI 775

Deferimento

#9.1

05/07/1985

RPI 759

Exigência - art. 36 da LPI

#6.1

10/30/1984

RPI 732

Solicitação de exame técnico

#4.1

09/20/1983

RPI 674

Publicação do pedido de patente

#3.1

05/31/1983

RPI 658

14.1

01/25/1983

RPI 640

Pedido de patente depositado

#2.1

12/15/1981

RPI 582

Carta-patente expirada

#21.1

11/22/1994

RPI 1251

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