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Official data from INPI

Processo de eterificação de uma função fenólica.

ConcedidaInvention Patent

Application data

Number

PI8101855

Type

Invention Patent

Filing

03/27/1981

Publication

10/06/1981

Progress at the INPI

  1. Filing03/27/81
  2. Publication10/06/81
  3. Examination11/08/83
  4. Allowance07/09/85
  5. Grant02/04/86
  6. Terminated02/04/92

The patent was granted on 02/04/1986 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: 02/04/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

R. S. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

80 07628 · 03/31/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/04/1986

RPI 798

Notificação para pagamento de retribuição

#13.1

11/12/1985

RPI 786

Deferimento

#9.1

07/09/1985

RPI 768

Exigência - art. 36 da LPI

#6.1

10/02/1984

RPI 728

Solicitação de exame técnico

#4.1

11/08/1983

RPI 681

Publicação do pedido de patente

#3.1

10/06/1981

RPI 572

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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