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Official data from INPI

PROCESSO DE PRODUÇÃO DE ÁCIDO ITACÔNICO

PublicadaInvention Patent

Application data

Number

PI8902017

Type

Invention Patent

Filing

04/28/1989

Publication

12/05/1989

Progress at the INPI

  1. Filing04/28/89
  2. Publication12/05/89
  3. Examination03/19/91
  4. Allowance11/14/95
  5. Grant07/30/96
  6. Expired12/22/09

The letters patent expired on 12/22/2009: 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: 12/05/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

R. C. (pessoa física)

FR

See this company's full portfolio

Inventors

D. S. (pessoa física)

FR

P. C. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

88 05847 · 05/02/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/05/1989

RPI 998

Pedido de patente depositado

#2.1

06/13/1989

RPI 973

Carta-patente expirada

#21.1

Patente extinta em 28/04/2004

12/22/2009

RPI 2033

Concessão da patente

#16.1

07/30/1996

RPI 1339

Notificação para pagamento de retribuição

#13.1

03/19/1996

RPI 1320

Deferimento

#9.1

11/14/1995

RPI 1302

Exigência - art. 36 da LPI

#6.1

02/14/1995

RPI 1263

Solicitação de exame técnico

#4.1

03/19/1991

RPI 1059

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