Official data from INPI

DISPOSITIVO SEM CAVILHAS PARA ESPACAR PELO MENOS DOIS CONDUTORES SEPARADOS E PARALELOS

Em AnáliseInvention Patent

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Application data

Number

PI7605879

Type

Invention Patent

Filing

09/05/1975

Publication

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Progress at the INPI

Filing09/05/75
Publication
Examination
Allowance
Grant11/10/81
Terminated11/17/87

The patent was granted on 11/10/1981 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: 11/17/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ALUMINUM CO OF AMERICA

Inventors

H. R. (pessoa física)

R. C. (pessoa física)

Technical data

IPC Classification

H02G 7/12

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

11/17/1987

RPI 891

Concessão da patente

#16.1

11/10/1981

RPI 577

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