Official data from INPI

PROCESSO PARA TRATAMENTO DE SUPERFICIE DE RESINA DE POLIACETAL

ConcedidaInvention Patent

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Application data

Number

PI8108573

Type

Invention Patent

Filing

04/30/1980

Publication

04/06/1982

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Progress at the INPI

Filing04/30/80
Publication04/06/82
Examination12/20/83
Allowance05/14/85
Grant11/26/85
Terminated11/08/94

The patent was granted on 11/26/1985 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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Latest action published by the INPI: 11/26/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

POLYPLASTICS CO [JP]

Inventors

I. Y. (pessoa física)

M. Y. (pessoa física)

T. K. (pessoa física)

Technical data

IPC Classification

C08J 7/14

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/26/1985

RPI 788

Notificação para pagamento de retribuição

#13.1

09/03/1985

RPI 776

Deferimento

#9.1

05/14/1985

RPI 760

Exigência - art. 36 da LPI

#6.1

09/04/1984

RPI 724

Solicitação de exame técnico

#4.1

12/20/1983

RPI 687

Notificação de entrada na fase nacional - PCT

#1.3

04/06/1982

RPI 598

Anuidade - prazo legal encerrado

#18.2

11/08/1994

RPI 1249

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PROCESSO PARA A PRODUCAO DE RESINA DE SULFETO DE POLIFENILENO APERFEICOADA

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