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Official data from INPI

COMPOSIÇÃO TERMOPLÁSTICA DE ÉTER POLIFENILÊNICO

PublicadaInvention Patent

Application data

Number

PI8703093

Type

Invention Patent

Filing

06/19/1987

Publication

06/14/1988

Progress at the INPI

  1. Filing06/19/87
  2. Publication06/14/88
  3. Examination11/13/90
  4. Allowance11/03/93
  5. Grant08/30/94
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Borg-Warner Chemicals, Inc

US

See this company's full portfolio

Inventors

Y. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

929.445 · 11/12/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

06/14/1988

RPI 921

Pedido de patente depositado

#2.1

09/01/1987

RPI 880

Carta-patente expirada

#21.1

Patente extinta em 19/06/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

08/30/1994

RPI 1239

Notificação para pagamento de retribuição

#13.1

03/22/1994

RPI 1216

Deferimento

#9.1

11/03/1993

RPI 1196

Exigência - art. 36 da LPI

#6.1

12/24/1991

RPI 1099

Solicitação de exame técnico

#4.1

11/13/1990

RPI 1041

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