Official data from INPI

PROCESSO E DISPOSITIVO PARA A FABRICACAO DE PLACAS DE FIBRAS,ESPECIALMENTE PLACAS DE CIMENTO E DE AMIANTO

Em AnáliseInvention Patent

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Application data

Number

PI7600350

Type

Invention Patent

Filing

01/22/1975

Publication

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Progress at the INPI

Filing01/22/75
Publication
Examination
Allowance
Grant04/29/86
Terminated07/29/86

The patent was granted on 04/29/1986 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: 07/29/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. W. (pessoa física)

Inventors

E. G. (pessoa física)

R. L. (pessoa física)

Technical data

IPC Classification

C04B 15/16

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

07/29/1986

RPI 823

Concessão da patente

#16.1

04/29/1986

RPI 810

15.15

09/18/1984

RPI 726

110

06/05/1984

RPI 711

Recurso

#12.1

12/22/1981

RPI 583

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