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Official data from INPI

PROCESSO DE FABRICAÇÃO DE HIPOCLORITO DE CÁLCIO

PublicadaInvention Patent

Application data

Number

PI8706742

Type

Invention Patent

Filing

12/11/1987

Publication

07/19/1988

Progress at the INPI

  1. Filing12/11/87
  2. Publication07/19/88
  3. Examination08/28/90
  4. Allowance05/24/94
  5. Grant11/29/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 07/19/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Solvay

BE

Solvay & Cie.

BE

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Inventors

J. B. (pessoa física)

BE

J. D. (pessoa física)

BE

J. V. (pessoa física)

BE

P. C. (pessoa física)

FR

P. G. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

86 17620 · 12/15/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

07/19/1988

RPI 926

Pedido de patente depositado

#2.1

03/01/1988

RPI 906

Carta-patente expirada

#21.1

Patente extinta em 11/12/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/29/1994

RPI 1252

Deferimento

#9.1

05/24/1994

RPI 1225

Exigência - art. 36 da LPI

#6.1

11/23/1993

RPI 1199

Solicitação de exame técnico

#4.1

08/28/1990

RPI 1030

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