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Official data from INPI

PROCESSO PARA FABRICAR URÉIA COM BAIXO CONSUMO DE VAPOR

Em AnáliseInvention Patent

Application data

Number

PI8403519

Type

Invention Patent

Filing

07/13/1984

Publication

06/25/1985

Progress at the INPI

  1. Filing07/13/84
  2. Publication06/25/85
  3. Examination06/16/87
  4. Allowance10/02/90
  5. Grant05/28/91
  6. Expired07/08/08

The letters patent expired on 07/08/2008: 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: 06/16/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Montedison S.p.A.

IT

See this company's full portfolio

Inventors

G. P. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

IT

22073 A/83 · 07/14/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Publicação do pedido de patente

#3.1

06/25/1985

RPI 766

Pedido de patente depositado

#2.1

09/25/1984

RPI 727

Carta-patente expirada

#21.1

Patente extinta em 13/07/99

07/08/2008

RPI 1957

Republicação - classificação IPC

#15.11

09/03/1991

RPI 1083

Concessão da patente

#16.1

05/28/1991

RPI 1069

Notificação para pagamento de retribuição

#13.1

01/15/1991

RPI 1050

Deferimento

#9.1

10/02/1990

RPI 1035

Exigência - art. 36 da LPI

#6.1

05/08/1990

RPI 1017

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