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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE COMPOSTOS DE AMINOARIL-BETA-SULFATOETILSULFONA

Arquivada/ExtintaInvention PatentPCT · EP1988001081

Application data

Number

PI8807840

Type

Invention Patent

Filing

11/29/1988

Publication

11/13/1990

PCT

EP1988001081

Progress at the INPI

  1. Filing11/29/88
  2. Publication11/13/90
  3. Examination09/03/91
  4. Allowance07/18/95
  5. Grant03/26/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 09/02/2008. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Clariant GMBH

DE

H. A. (pessoa física)

DE

See this company's full portfolio

Inventors

W. R. (pessoa física)

DE

Technical data

Priority claims

DE

P 37 42 044.5 · 12/11/1987

DE

P 38 22 231.0 · 07/01/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 29/11/2003

09/02/2008

RPI 1965

Transferência deferida

#25.1

Transferido de: Hoechst Aktiengesellschaft

07/31/2001

RPI 1595

Concessão da patente

#16.1

03/26/1996

RPI 1321

Notificação para pagamento de retribuição

#13.1

11/28/1995

RPI 1304

Deferimento

#9.1

07/18/1995

RPI 1285

Solicitação de exame técnico

#4.1

09/03/1991

RPI 1083

Notificação de entrada na fase nacional - PCT

#1.3

11/13/1990

RPI 1041

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