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Official data from INPI

PROCESSO PARA A OBTENÇÃO DE 1,1,1,2-TETRAFLUORETANO

Arquivada/ExtintaInvention Patent

Application data

Number

PI9004539

Type

Invention Patent

Filing

09/12/1990

Publication

09/10/1991

Progress at the INPI

  1. Filing09/12/90
  2. Publication09/10/91
  3. Examination12/14/93
  4. Allowance06/26/01
  5. Grant04/02/02
  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

H. A. (pessoa física)

DE

Solvay (Société Anonyme)

BE

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Inventors

G. S. (pessoa física)

DE

W. S. (pessoa física)

DE

W. W. (pessoa física)

DE

Technical data

Priority claims

DE

P 39 30 507.4 · 09/13/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 02/04/2012

05/21/2013

RPI 2211

Concessão da patente

#16.1

04/02/2002

RPI 1630

Deferimento

#9.1

06/26/2001

RPI 1590

Exigência - art. 36 da LPI

#6.1

01/23/2001

RPI 1568

Transferência deferida

#25.1

Transferido de: Hoechst Aktiengesellschaft

03/16/1999

RPI 1471

Exigência - art. 36 da LPI

#6.1

02/12/1997

RPI 1367

Solicitação de exame técnico

#4.1

12/14/1993

RPI 1202

Publicação do pedido de patente

#3.1

09/10/1991

RPI 1084

Pedido de patente depositado

#2.1

03/19/1991

RPI 1059

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