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Official data from INPI

INVOLUCRO PROTETOR DE VÁLVULA.

ConcedidaUtility Model

Application data

Number

MU6301625

Type

Utility Model

Filing

11/04/1983

Publication

06/11/1985

Progress at the INPI

  1. Filing11/04/83
  2. Publication06/11/85
  3. Examination09/03/85
  4. Allowance11/10/87
  5. Grant04/26/88
  6. Expired09/27/94

The letters patent expired on 09/27/1994: 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: 04/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Cia. Ultragaz S/A.

SP, BR

Inventors

P. F. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1988

RPI 914

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/10/1987

RPI 890

Exigência - art. 36 da LPI

#6.1

04/14/1987

RPI 860

Exigência - art. 36 da LPI

#6.1

09/23/1986

RPI 831

Solicitação de exame técnico

#4.1

09/03/1985

RPI 776

Publicação do pedido de patente

#3.1

06/11/1985

RPI 764

Pedido de patente depositado

#2.1

01/10/1984

RPI 690

Carta-patente expirada

#21.1

09/27/1994

RPI 1243

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