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Official data from INPI

PROCESSO APERFEIÇOADO PARA A POLIMERIZAÇÃO NO ESTADO SÓLIDO DE UM PREPOLÍMERO DE POLIÉSTER A UMA RESINA DE ALTO PESO MOLECULAR.

PublicadaInvention Patent

Application data

Number

PI8700967

Type

Invention Patent

Filing

02/27/1987

Publication

12/22/1987

Progress at the INPI

  1. Filing02/27/87
  2. Publication12/22/87
  3. Examination10/23/90
  4. Allowance03/02/93
  5. Grant10/26/93
  6. Terminated10/17/95

The patent was granted on 10/26/1993 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Shell Intrenationale Research Maatshappij B.V.

NL

The Goodyear Tire & Rubber Company

US

Inventors

J. J. (pessoa física)

US

P. W. (pessoa física)

US

W. T. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

836.284 · 03/05/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

06/23/1987

RPI 870

Anuidade - prazo legal encerrado

#18.2

10/17/1995

RPI 1298

Concessão anulada

#16.2

11/16/1993

RPI 1198

Concessão da patente

#16.1

10/26/1993

RPI 1195

Concessão da patente

#16.1

08/31/1993

RPI 1187

14.1

08/24/1993

RPI 1186

Notificação para pagamento de retribuição

#13.1

06/15/1993

RPI 1176

Deferimento

#9.1

03/02/1993

RPI 1161

Exigência - art. 36 da LPI

#6.1

12/17/1991

RPI 1098

Solicitação de exame técnico

#4.1

10/23/1990

RPI 1038

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