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Official data from INPI

MATERIAL DE DIAZOTIPIA DE DOIS COMPONENTES.

ConcedidaInvention Patent

Application data

Number

PI8401009

Type

Invention Patent

Filing

03/02/1984

Publication

10/16/1984

Progress at the INPI

  1. Filing03/02/84
  2. Publication10/16/84
  3. Examination07/22/86
  4. Allowance02/28/89
  5. Grant09/26/89
  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.

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Latest action published by the INPI: 09/26/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

H. A. (pessoa física)

DE

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Inventors

S. S. (pessoa física)

Technical data

IPC Classification

Priority claims

DE

P 33 08 395.9 · 03/09/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

09/26/1989

RPI 988

Notificação para pagamento de retribuição

#13.1

07/11/1989

RPI 977

Deferimento

#9.1

02/28/1989

RPI 958

Exigência - art. 36 da LPI

#6.1

05/10/1988

RPI 916

Solicitação de exame técnico

#4.1

07/22/1986

RPI 822

Publicação do pedido de patente

#3.1

10/16/1984

RPI 730

Pedido de patente depositado

#2.1

05/15/1984

RPI 708

Carta-patente expirada

#21.1

Patente extinta em 02/03/99

07/08/2008

RPI 1957

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