Official data from INPI

PROCESSO DE FABRICAÇÃO DE DISPOSITIVOS SEMICONDUTORES

Em AnáliseInvention PatentPCT · US1987002952

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Application data

Number

PI8707876

Type

Invention Patent

Filing

11/12/1987

Publication

03/01/1990

PCT

US1987002952

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Progress at the INPI

Filing11/12/87
Publication03/01/90
Examination05/15/90
Allowance
Grant
In force

Published on 03/01/1990, the application is awaiting technical examination at the INPI, which decides whether the invention meets the patentability requirements.

Latest action published by the INPI: 12/03/1991. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M & T Chemicals, Inc.

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Inventors

L. Y. (pessoa física)

S. M. (pessoa física)

W. B. (pessoa física)

Technical data

IPC Classification

H01L 21/58

Priority claims

930.600 · 11/13/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

12/03/1991

RPI 1096

Solicitação de exame técnico

#4.1

05/15/1990

RPI 1018

Notificação de entrada na fase nacional - PCT

#1.3

03/01/1990

RPI 1007

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PROCESSO PARA PREPARAÇÃO DE DERIVADOS ORGANOESTÂNICOS

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