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Official data from INPI

MÁQUINA PARA FABRICAÇÃO DE UMA PELÍCULA TERMOPLÁSTICA CONDICIONADA MECANICAMENTE COM TENSÕES RECUPERÁVEIS BIAXIALMENTE

Arquivada/ExtintaInvention Patent

Application data

Number

PI8903598

Type

Invention Patent

Filing

07/20/1989

Publication

01/29/1991

Progress at the INPI

  1. Filing07/20/89
  2. Publication01/29/91
  3. Examination05/14/91
  4. Allowance08/19/97
  5. Grant08/25/98
  6. Expired12/26/12

The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Plásticos Polyfilm S/A

SP, BR

Viskase Brasil Embalagens Ltda

SP, BR

Inventors

F. D. (pessoa física)

BR

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 20/07/2009

12/26/2012

RPI 2190

Concessão da patente

#16.1

08/25/1998

RPI 1444

Transferência deferida

#25.1

01/06/1998

RPI 1411

Deferimento

#9.1

08/19/1997

RPI 1394

Exigência - art. 36 da LPI

#6.1

01/02/1996

RPI 1309

Solicitação de exame técnico

#4.1

05/14/1991

RPI 1067

Publicação do pedido de patente

#3.1

01/29/1991

RPI 1052

Pedido de patente depositado

#2.1

01/09/1990

RPI 1001

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