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Official data from INPI

PROCESSO PARA A PREPARAÇÃO DE POLIETILENO

PublicadaInvention Patent

Application data

Number

PI8805458

Type

Invention Patent

Filing

10/21/1988

Publication

06/27/1989

Progress at the INPI

  1. Filing10/21/88
  2. Publication06/27/89
  3. Examination06/25/91
  4. Allowance01/30/96
  5. Grant11/26/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 06/27/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Peroxid-Chemie GmbH

DE

See this company's full portfolio

Inventors

D. L. (pessoa física)

DE

D. D. (pessoa física)

DE

N. F. (pessoa física)

DE

Technical data

Priority claims

DE

P 37 35 821.9 · 10/22/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

06/27/1989

RPI 975

Pedido de patente depositado

#2.1

03/21/1989

RPI 961

Carta-patente expirada

#21.1

Patente extinta em 21/10/2003

09/02/2008

RPI 1965

Concessão da patente

#16.1

11/26/1996

RPI 1356

Notificação para pagamento de retribuição

#13.1

07/09/1996

RPI 1336

Deferimento

#9.1

01/30/1996

RPI 1313

Exigência - art. 36 da LPI

#6.1

02/21/1995

RPI 1264

Solicitação de exame técnico

#4.1

06/25/1991

RPI 1073

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