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Official data from INPI

SEM TITULO

ConcedidaInvention Patent

Application data

Number

PI8405295

Type

Invention Patent

Filing

10/19/1984

Publication

09/03/1985

Progress at the INPI

  1. Filing10/19/84
  2. Publication09/03/85
  3. Examination10/06/87
  4. Allowance06/28/88
  5. Grant01/10/89
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 01/10/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

SAINT GOBAIN ISOVER [FR]

Inventors

B. B. (pessoa física)

L. H. (pessoa física)

L. B. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

01/10/1989

RPI 951

Notificação para pagamento de retribuição

#13.1

10/25/1988

RPI 940

Republicação - classificação IPC

#15.11

08/02/1988

RPI 928

Deferimento

#9.1

06/28/1988

RPI 923

Solicitação de exame técnico

#4.1

10/06/1987

RPI 885

Publicação do pedido de patente

#3.1

09/03/1985

RPI 776

Pedido de patente depositado

#2.1

01/02/1985

RPI 741

Carta-patente expirada

#21.1

Patente extinta em 19/10/99

07/08/2008

RPI 1957

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