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Official data from INPI

SEM TITULO

ConcedidaInvention Patent
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Application data

Number

PI8105362

Type

Invention Patent

Filing

08/21/1981

Publication

03/29/1983
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Progress at the INPI

  1. Filing08/21/81
  2. Publication03/29/83
  3. Examination05/29/84
  4. Allowance09/30/86
  5. Grant07/28/87
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 07/28/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

STAUFFER CHEMICAL CO [US]

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Inventors

M. J. (pessoa física)

T. E. (pessoa física)

Technical data

IPC Classification

C07F 7/04

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/28/1987

RPI 875

Notificação para pagamento de retribuição

#13.1

03/04/1987

RPI 854

Deferimento

#9.1

09/30/1986

RPI 832

Exigência - art. 36 da LPI

#6.1

03/25/1986

RPI 805

Exigência - art. 36 da LPI

#6.1

07/30/1985

RPI 771

Solicitação de exame técnico

#4.1

05/29/1984

RPI 710

Publicação do pedido de patente

#3.1

03/29/1983

RPI 649

Carta-patente expirada

#21.1

Patente extinta em 21/08/96

08/19/2008

RPI 1963

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