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Official data from INPI

COMPOSIÇÃO TERMOPLÁSTICA, PROCESSO PARA PELOTIZAR HOMOPOLÍMERO POLI(CLORETO DE VINILA), E, ARTIGO MOLDADO

PublicadaInvention Patent

Application data

Number

PI8805455

Type

Invention Patent

Filing

10/21/1988

Publication

06/27/1989

Progress at the INPI

  1. Filing10/21/88
  2. Publication06/27/89
  3. Examination07/02/91
  4. Allowance08/15/95
  5. Grant04/30/96
  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

The B.F. Goodrich Company

US

The Geon Company

US

See this company's full portfolio

Inventors

E. F. (pessoa física)

US

P. K. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

112,793 · 10/23/1987

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

04/30/1996

RPI 1326

Notificação para pagamento de retribuição

#13.1

01/16/1996

RPI 1311

Deferimento

#9.1

08/15/1995

RPI 1289

14.1

12/06/1994

RPI 1253

Solicitação de exame técnico

#4.1

07/02/1991

RPI 1074

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