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Official data from INPI

Processo para a preparação de polifenóis que comportam eventualmente um grupo aldeído.

ConcedidaInvention Patent

Application data

Number

PI8104433

Type

Invention Patent

Filing

07/10/1981

Publication

03/30/1982

Progress at the INPI

  1. Filing07/10/81
  2. Publication03/30/82
  3. Examination03/13/84
  4. Allowance02/12/86
  5. Grant08/26/86
  6. Terminated02/04/92

The patent was granted on 08/26/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 08/26/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

F. K. (pessoa física)

M. D. (pessoa física)

P. D. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

80 15753 · 07/11/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/26/1986

RPI 827

Deferimento

#9.1

02/12/1986

RPI 799

Exigência - art. 36 da LPI

#6.1

07/23/1985

RPI 770

Exigência - art. 36 da LPI

#6.1

01/15/1985

RPI 743

Solicitação de exame técnico

#4.1

03/13/1984

RPI 699

Publicação do pedido de patente

#3.1

03/30/1982

RPI 597

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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