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Official data from INPI

APERFEICOMANTO EM VALVULA

ConcedidaUtility Model

Application data

Number

MU6001089

Type

Utility Model

Filing

08/28/1980

Publication

05/04/1982

Progress at the INPI

  1. Filing08/28/80
  2. Publication05/04/82
  3. Examination07/27/82
  4. Allowance01/02/85
  5. Grant07/30/85
  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: 07/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MECANO FABRIL SA

Inventors

D. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/30/1985

RPI 771

Notificação para pagamento de retribuição

#13.1

04/23/1985

RPI 757

Deferimento

#9.1

01/02/1985

RPI 741

14.4

07/10/1984

RPI 716

Exigência - art. 36 da LPI

#6.1

03/07/1984

RPI 698

Solicitação de exame técnico

#4.1

07/27/1982

RPI 614

Publicação do pedido de patente

#3.1

05/04/1982

RPI 602

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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