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Official data from INPI

DISPOSIÇÕES CONSTRUTIVAS INTRODUZIDAS EM VÁLVULA DE RETENÇÃO DE FLUÍDOS LÍQUIDOS E/OU GASOSOS

Em AnáliseUtility Model

Application data

Number

MU6801544

Type

Utility Model

Filing

07/14/1988

Publication

12/27/1988

Progress at the INPI

  1. Filing07/14/88
  2. Publication12/27/88
  3. Examination03/14/89
  4. Allowance12/22/92
  5. Grant08/31/93
  6. Expired09/25/01

The letters patent expired on 09/25/2001: 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: 03/14/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Col-Ven Sociedad Anonima

AR

Inventors

R. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

03/14/1989

RPI 960

Publicação antecipada

#3.2

12/27/1988

RPI 949

Pedido de patente depositado

#2.1

12/13/1988

RPI 947

Carta-patente expirada

#21.1

Patente extinta em 14/07/98 conforme o disposto no artigo 24 da Lei 5772/71 (CPI).

09/25/2001

RPI 1603

Concessão da patente

#16.1

08/31/1993

RPI 1187

Notificação para pagamento de retribuição

#13.1

04/27/1993

RPI 1169

Deferimento

#9.1

12/22/1992

RPI 1151

14.1

09/04/1990

RPI 1031

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