Official data from INPI

PROCESSO DE ESPESSAMENTO DE PASTA DE ESCORIA GRANULADA

ConcedidaInvention Patent

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Application data

Number

PI7604693

Type

Invention Patent

Filing

07/25/1975

Publication

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Progress at the INPI

Filing07/25/75
Publication
Examination
Allowance
Grant06/29/82
Terminated10/23/90

The patent was granted on 06/29/1982 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: 04/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RASA CORP

Inventors

O. N. (pessoa física)

Technical data

IPC Classification

C21C 5/54

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Republicação - classificação IPC

#15.11

04/26/1983

RPI 653

Concessão da patente

#16.1

06/29/1982

RPI 610

Anuidade - prazo legal encerrado

#18.2

10/23/1990

RPI 1038

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APARELHO PARA PRODUZIR ESCORIA GRANULADA POR AGUA

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