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Official data from INPI

PANELA DE PRESSÃO.

ConcedidaInvention Patent
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Application data

Number

PI8304801

Type

Invention Patent

Filing

09/02/1983

Publication

04/10/1984
View on INPI

Progress at the INPI

  1. Filing09/02/83
  2. Publication04/10/84
  3. Examination02/04/86
  4. Allowance11/10/87
  5. Grant06/28/88
  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.

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Latest action published by the INPI: 06/28/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. B. (pessoa física)

H. H. (pessoa física)

H. B. (pessoa física)

DE

Inventors

E. B. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

DE

P 32 32 907.5 · 09/04/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/28/1988

RPI 923

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

11/10/1987

RPI 890

Solicitação de exame técnico

#4.1

02/04/1986

RPI 798

Publicação do pedido de patente

#3.1

04/10/1984

RPI 703

Pedido de patente depositado

#2.1

11/01/1983

RPI 680

Carta-patente expirada

#21.1

Patente extinta em 02/09/98

07/01/2008

RPI 1956

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