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Official data from INPI

APERFEICOAMENTOS EM FILTROS PARA AGUA

Em AnáliseUtility Model

Application data

Number

MU6000135

Type

Utility Model

Filing

02/01/1980

Publication

-

Progress at the INPI

  1. Filing02/01/80
  2. Publication
  3. Examination11/03/81
  4. Allowance10/11/83
  5. Grant05/29/84
  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: 02/18/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. B. (pessoa física)

Inventors

D. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

02/18/1986

RPI 800

Concessão da patente

#16.1

05/29/1984

RPI 710

Notificação para pagamento de retribuição

#13.1

01/24/1984

RPI 692

Deferimento

#9.1

10/11/1983

RPI 677

Exigência - art. 36 da LPI

#6.1

10/05/1982

RPI 624

Solicitação de exame técnico

#4.1

11/03/1981

RPI 576

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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