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Official data from INPI

PROCESSO PARA OBTENÇÃO DE UMA COMPOSIÇÃO POLIMÉRICA

Arquivada/ExtintaInvention Patent

Application data

Number

PI8906764

Type

Invention Patent

Filing

12/21/1989

Publication

09/18/1990

Progress at the INPI

  1. Filing12/21/89
  2. Publication09/18/90
  3. Examination03/26/91
  4. Allowance03/26/96
  5. Grant08/26/97
  6. Expired05/21/13

The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Enichem Elastomeri S.p.A.

IT

See this company's full portfolio

Inventors

A. Z. (pessoa física)

IT

S. C. (pessoa física)

IT

Technical data

IPC Classification

Priority claims

IT

23 088 A/88 · 12/23/1988

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 21/12/2009

05/21/2013

RPI 2211

Concessão da patente

#16.1

08/26/1997

RPI 1395

Republicação - classificação IPC

#15.11

02/25/1997

RPI 1369

Notificação para pagamento de retribuição

#13.1

02/04/1997

RPI 1366

Deferimento

#9.1

03/26/1996

RPI 1321

Exigência - art. 36 da LPI

#6.1

06/20/1995

RPI 1281

Solicitação de exame técnico

#4.1

03/26/1991

RPI 1060

Publicação do pedido de patente

#3.1

09/18/1990

RPI 1033

Pedido de patente depositado

#2.1

04/10/1990

RPI 1013

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