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Official data from INPI

COMUTADOR ACIONAVEL A FLUIDO

Em AnáliseUtility Model

Application data

Number

MU6201282

Type

Utility Model

Filing

09/20/1982

Publication

05/02/1984

Progress at the INPI

  1. Filing09/20/82
  2. Publication05/02/84
  3. Examination07/24/84
  4. Allowance12/17/85
  5. Grant07/29/86
  6. Expired12/07/93

The letters patent expired on 12/07/1993: 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: 01/13/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PAULO DAS NEVES CAVALCANTE [BR]

Inventors

C. [. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

01/13/1987

RPI 847

Concessão da patente

#16.1

07/29/1986

RPI 823

Notificação para pagamento de retribuição

#13.1

04/22/1986

RPI 809

Deferimento

#9.1

12/17/1985

RPI 791

Solicitação de exame técnico

#4.1

07/24/1984

RPI 718

Publicação do pedido de patente

#3.1

05/02/1984

RPI 706

Pedido de patente depositado

#2.1

11/09/1982

RPI 629

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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