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Official data from INPI

PROCESSO PARA CONCENTRAR UMA SOLUÇÃO AQUOSA DILUÍDA DE ÓXIDO DE ETILENO

Em AnáliseInvention Patent

Application data

Number

PI8505371

Type

Invention Patent

Filing

10/29/1985

Publication

08/05/1986

Progress at the INPI

  1. Filing10/29/85
  2. Publication08/05/86
  3. Examination07/05/88
  4. Allowance07/07/98
  5. Grant06/29/99
  6. Expired12/05/12

The letters patent expired on 12/05/2012: 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: 03/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Atochem

FR

See this company's full portfolio

Inventors

F. D. (pessoa física)

FR

H. N. (pessoa física)

FR

Technical data

Priority claims

FR

84 16827 · 10/31/1984

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

5.2

03/21/1989

RPI 961

Solicitação de exame técnico

#4.1

07/05/1988

RPI 924

Publicação do pedido de patente

#3.1

08/05/1986

RPI 824

Pedido de patente depositado

#2.1

12/24/1985

RPI 792

Carta-patente expirada

#21.1

Patente extinta em 29/06/2009

12/05/2012

RPI 2187

Concessão da patente

#16.1

06/29/1999

RPI 1486

8.1

Referente a 13ª anuidade

12/01/1998

RPI 1456

Deferimento

#9.1

07/07/1998

RPI 1437

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