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Official data from INPI

PROCESSO DE PREPARAÇÃO DE CATALISADORES PARA HIDRATAÇÃO DE NITRILAS

ConcedidaInvention Patent

Application data

Number

PI8305831

Type

Invention Patent

Filing

10/19/1983

Publication

05/28/1985

Progress at the INPI

  1. Filing10/19/83
  2. Publication05/28/85
  3. Examination02/12/86
  4. Allowance11/01/88
  5. Grant08/29/89
  6. Terminated05/09/95

The patent was granted on 08/29/1989 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhodia S/A

SP, BR

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Inventors

F. S. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

02/21/1989

RPI 957

Deferimento

#9.1

11/01/1988

RPI 941

Exigência - art. 36 da LPI

#6.1

05/31/1988

RPI 919

Solicitação de exame técnico

#4.1

02/12/1986

RPI 799

Publicação do pedido de patente

#3.1

05/28/1985

RPI 762

Pedido de patente depositado

#2.1

01/03/1984

RPI 689

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01J 31/36; B01J 37/16; C07C 102/08; C07C 103/133.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

05/09/1995

RPI 1275

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