Official data from INPI

MODULADOR-DEMODULADOR (MODEM) SINCRONO

Em AnáliseInvention Patent

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Application data

Number

PI8603489

Type

Invention Patent

Filing

07/24/1986

Publication

03/15/1988

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Progress at the INPI

Under appeal

Filing07/24/86
Publication03/15/88
Examination07/05/88
Refused08/13/91
Grant
In force

The application was refused by the INPI on 08/13/1991. The invention was never patented.

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Latest action published by the INPI: 07/05/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ABC-Dados Sistemas S/A

RJ, BR

Inventors

B. W. (pessoa física)

Technical data

IPC Classification

H04L 27/00

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

07/05/1988

RPI 924

Publicação do pedido de patente

#3.1

03/15/1988

RPI 908

Pedido de patente depositado

#2.1

02/24/1987

RPI 853

Republicação - classificação IPC

#15.11

11/19/1991

RPI 1094

Indeferimento

#9.2

08/13/1991

RPI 1080

Petição de recurso

#12.2

04/10/1990

RPI 1013

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