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Official data from INPI

TAMPÃO DE FECHAMENTO PARA RESERVATÓRIOS.

ConcedidaInvention Patent

Application data

Number

PI8301645

Type

Invention Patent

Filing

03/30/1983

Publication

12/13/1983

Progress at the INPI

  1. Filing03/30/83
  2. Publication12/13/83
  3. Examination11/12/85
  4. Allowance12/29/87
  5. Grant07/26/88
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Z. A. (pessoa física)

DE

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Inventors

S. R. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 32 12 307.8 · 04/02/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

Notificação para pagamento de retribuição

#13.1

05/10/1988

RPI 916

Deferimento

#9.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

06/16/1987

RPI 869

Solicitação de exame técnico

#4.1

11/12/1985

RPI 786

Publicação do pedido de patente

#3.1

12/13/1983

RPI 686

Pedido de patente depositado

#2.1

05/17/1983

RPI 656

Carta-patente expirada

#21.1

Patente extinta em 30/03/98

07/01/2008

RPI 1956

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