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Official data from INPI

PROCESSO DE PASSIVAR SUPERFÍCIE DE SEPARADORES DE INSTALAÇÕES DE PRODUÇÃO DE URÉIA.

ConcedidaInvention Patent
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Application data

Number

PI8301109

Type

Invention Patent

Filing

03/07/1983

Publication

11/22/1983
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Progress at the INPI

  1. Filing03/07/83
  2. Publication11/22/83
  3. Examination03/07/84
  4. Allowance05/31/88
  5. Grant02/28/89
  6. Terminated12/17/96

The patent was granted on 02/28/1989 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 05/16/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Montedison S.p.A.

IT

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Inventors

F. G. (pessoa física)

G. U. (pessoa física)

P. G. (pessoa física)

Technical data

IPC Classification

No IPC classification.

Priority claims

IT

21666 A/82 · 06/03/1982

IT

22962 A/82 · 08/25/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

05/16/1989

RPI 969

Concessão da patente

#16.1

02/28/1989

RPI 958

Notificação para pagamento de retribuição

#13.1

09/20/1988

RPI 935

Deferimento

#9.1

05/31/1988

RPI 919

Exigência - art. 36 da LPI

#6.1

12/29/1987

RPI 897

Exigência - art. 36 da LPI

#6.1

07/15/1986

RPI 821

Solicitação de exame técnico

#4.1

03/07/1984

RPI 698

Publicação do pedido de patente

#3.1

11/22/1983

RPI 683

Pedido de patente depositado

#2.1

04/19/1983

RPI 652

Anuidade - prazo legal encerrado

#18.2

12/17/1996

RPI 1359

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