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Official data from INPI

Selo para vedação de boca de dutos.

ConcedidaInvention Patent

Application data

Number

PI8103329

Type

Invention Patent

Filing

05/28/1981

Publication

01/04/1983

Progress at the INPI

  1. Filing05/28/81
  2. Publication01/04/83
  3. Examination06/28/83
  4. Allowance12/11/84
  5. Grant06/25/85
  6. Expired10/08/96

The letters patent expired on 10/08/1996: 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: 06/25/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Pirelli Cabos S.A.

SP, BR

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Inventors

B. G. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/25/1985

RPI 766

Notificação para pagamento de retribuição

#13.1

04/09/1985

RPI 755

Republicação - classificação IPC

#15.11

01/08/1985

RPI 742

Deferimento

#9.1

12/11/1984

RPI 738

Exigência - art. 36 da LPI

#6.1

07/03/1984

RPI 715

Solicitação de exame técnico

#4.1

06/28/1983

RPI 662

Publicação do pedido de patente

#3.1

01/04/1983

RPI 637

Carta-patente expirada

#21.1

10/08/1996

RPI 1349

20.4

08/11/1992

RPI 1132

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