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Official data from INPI

APERFEICOAMENTOS EM VALVULA

ConcedidaUtility Model
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Application data

Number

MU6101320

Type

Utility Model

Filing

09/21/1981

Publication

05/03/1983
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Progress at the INPI

  1. Filing09/21/81
  2. Publication05/03/83
  3. Examination07/02/85
  4. Allowance11/10/87
  5. Grant08/30/88
  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.

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Latest action published by the INPI: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SANTUCCI LUIZ [BR]

Inventors

S. [. (pessoa física)

Technical data

IPC Classification

F16K 15/08

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1988

RPI 932

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

06/23/1987

RPI 870

14.1

09/23/1986

RPI 831

Pedido de certificado de adição de invenção

#5.1

02/12/1986

RPI 799

Pedido de certificado de adição de invenção

#5.1

11/19/1985

RPI 787

Solicitação de exame técnico

#4.1

07/02/1985

RPI 767

3.4

06/21/1983

RPI 661

Publicação do pedido de patente

#3.1

05/03/1983

RPI 654

Pedido de patente depositado

#2.1

11/03/1981

RPI 576

Carta-patente expirada

#21.1

12/07/1993

RPI 1201

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