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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8300230

Type

Invention Patent

Filing

01/18/1983

Publication

10/18/1983
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Progress at the INPI

  1. Filing01/18/83
  2. Publication10/18/83
  3. Examination03/07/84
  4. Allowance10/27/87
  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.

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Latest action published by the INPI: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Oronzio De Nora S.A

CH

Inventors

B. [. (pessoa física)

N. [. (pessoa física)

Technical data

IPC Classification

C23F 13/00

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

03/01/1988

RPI 906

Deferimento

#9.1

10/27/1987

RPI 888

Exigência - art. 36 da LPI

#6.1

04/22/1987

RPI 861

14.4

12/30/1986

RPI 845

Exigência - art. 36 da LPI

#6.1

04/02/1985

RPI 754

Solicitação de exame técnico

#4.1

03/07/1984

RPI 698

Publicação do pedido de patente

#3.1

10/18/1983

RPI 678

Pedido de patente depositado

#2.1

03/08/1983

RPI 646

Carta-patente expirada

#21.1

Patente extinta em 18/01/98

07/01/2008

RPI 1956

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