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Official data from INPI

COMPOSIÇÕES DE POLÍMEROS MODIFICADOS DO ETILENO E SEU PROCESSO DE FABRICAÇÃO

Em AnáliseInvention Patent

Application data

Number

PI8607057

Type

Invention Patent

Filing

12/19/1986

Publication

02/23/1988

Progress at the INPI

  1. Filing12/19/86
  2. Publication02/23/88
  3. Examination10/24/89
  4. Allowance09/14/93
  5. Grant06/28/94
  6. Expired07/22/08

The letters patent expired on 07/22/2008: 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Norsolor, sociéte anonyme

FR

Inventors

E. P. (pessoa física)

FR

J. A. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

85/19117 · 12/24/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/24/1989

RPI 992

Notificação de entrada na fase nacional - PCT

#1.3

02/23/1988

RPI 905

Carta-patente expirada

#21.1

Patente extinta em 19/12/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

06/28/1994

RPI 1230

Notificação para pagamento de retribuição

#13.1

02/22/1994

RPI 1212

Deferimento

#9.1

09/14/1993

RPI 1189

14.1

09/22/1992

RPI 1138

14.3

06/23/1992

RPI 1125

Exigência - art. 36 da LPI

#6.1

12/17/1991

RPI 1098

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