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Official data from INPI

DISPOSICAO CONSTRUTIVA EM VALVULA MESCLADORA

Em AnáliseUtility Model

Application data

Number

MU6100179

Type

Utility Model

Filing

02/10/1981

Publication

09/21/1982

Progress at the INPI

  1. Filing02/10/81
  2. Publication09/21/82
  3. Examination10/04/83
  4. Allowance10/09/84
  5. Grant05/28/85
  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: 07/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NORTORF MAQUINAS EQUIP LTD [BR]

Inventors

L. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

20.4

07/05/1988

RPI 924

20.4

06/28/1988

RPI 923

20.7

05/27/1986

RPI 814

Concessão da patente

#16.1

05/28/1985

RPI 762

Notificação para pagamento de retribuição

#13.1

02/20/1985

RPI 748

Deferimento

#9.1

10/09/1984

RPI 729

Solicitação de exame técnico

#4.1

10/04/1983

RPI 676

Publicação do pedido de patente

#3.1

09/21/1982

RPI 622

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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