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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE DICROMATO DE SÓDIO ANIDRO E APARELHO PARA A SUA PRODUÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8505155

Type

Invention Patent

Filing

10/16/1985

Publication

07/29/1986

Progress at the INPI

  1. Filing10/16/85
  2. Publication07/29/86
  3. Examination09/06/88
  4. Allowance01/02/91
  5. Grant07/30/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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: 09/06/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Luigi Stoppani S.p.A.

IT

Inventors

D. P. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

23155 A/84 · 10/16/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

09/06/1988

RPI 933

Publicação do pedido de patente

#3.1

07/29/1986

RPI 823

Pedido de patente depositado

#2.1

12/24/1985

RPI 792

Carta-patente expirada

#21.1

Patente extinta em 16/10/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

07/30/1991

RPI 1078

Notificação para pagamento de retribuição

#13.1

04/16/1991

RPI 1063

Deferimento

#9.1

01/02/1991

RPI 1048

Exigência - art. 36 da LPI

#6.1

07/24/1990

RPI 1025

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