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Official data from INPI

PROCESSO DE PREPARAÇÃO DE ARABONATO DE METAIS ALCALINOS EM MEIO ALCOÓLICO

Em AnáliseInvention Patent

Application data

Number

PI8705037

Type

Invention Patent

Filing

09/30/1987

Publication

09/13/1988

Progress at the INPI

  1. Filing09/30/87
  2. Publication09/13/88
  3. Examination10/24/89
  4. Allowance07/13/99
  5. Grant12/14/99
  6. Expired12/11/12

The letters patent expired on 12/11/2012: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Instituto Nacional de Tecnologia

RJ, BR

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Inventors

B. R. (pessoa física)

BR

E. S. (pessoa física)

BR

T. N. (pessoa física)

BR

V. F. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/24/1989

RPI 992

Publicação antecipada

#3.2

09/13/1988

RPI 934

Pedido de patente depositado

#2.1

12/22/1987

RPI 896

Carta-patente expirada

#21.1

Patente extinta em 14/12/2009

12/11/2012

RPI 2188

Concessão da patente

#16.1

12/14/1999

RPI 1510

Deferimento

#9.1

07/13/1999

RPI 1488

Exigência - art. 36 da LPI

#6.1

09/22/1998

RPI 1448

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