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Official data from INPI

PROCESSO DE PRODUÇÃO DE DIÓXIDO DE CLORO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9005664

Type

Invention Patent

Filing

11/08/1990

Publication

11/19/1991

Progress at the INPI

  1. Filing11/08/90
  2. Publication11/19/91
  3. Examination05/12/92
  4. Allowance07/06/99
  5. Grant12/28/99
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

E. A. (pessoa física)

SE

See this company's full portfolio

Inventors

A. D. (pessoa física)

SE

B. S. (pessoa física)

SE

J. W. (pessoa física)

US

Technical data

IPC Classification

Priority claims

SE

9000834-3 · 03/09/1990

US

486.122 · 03/05/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 08/11/2010

05/21/2013

RPI 2211

Concessão da patente

#16.1

12/28/1999

RPI 1512

Deferimento

#9.1

07/06/1999

RPI 1487

Exigência - art. 36 da LPI

#6.1

02/17/1999

RPI 1467

Solicitação de exame técnico

#4.1

05/12/1992

RPI 1119

Publicação do pedido de patente

#3.1

11/19/1991

RPI 1094

Pedido de patente depositado

#2.1

04/23/1991

RPI 1064

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