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Official data from INPI

DISPOSIÇÃO CONSTRUTIVA EM CANOPLA PARA VÁLVULA DE DESCARGA.

Em AnáliseUtility Model
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Application data

Number

MU6401396

Type

Utility Model

Filing

08/27/1984

Publication

04/08/1986
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Progress at the INPI

  1. Filing08/27/84
  2. Publication04/08/86
  3. Examination08/05/86
  4. Allowance11/10/87
  5. Grant06/28/88
  6. Expired11/22/94

The letters patent expired on 11/22/1994: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 12/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. L. (pessoa física)

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Inventors

C. L. (pessoa física)

BR

Technical data

IPC Classification

E03D 3/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Pedido de licença compulsória

#20.1

12/13/1988

RPI 947

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Republicação - classificação IPC

#15.11

12/22/1987

RPI 896

Deferimento

#9.1

11/10/1987

RPI 890

Solicitação de exame técnico

#4.1

08/05/1986

RPI 824

Publicação do pedido de patente

#3.1

04/08/1986

RPI 807

Pedido de patente depositado

#2.1

10/30/1984

RPI 732

Carta-patente expirada

#21.1

11/22/1994

RPI 1251

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