Official data from INPI

APERFEICOAMENTOS NO NIVELADOR DO EXPULSOR PARA PORTAS DE FORNO DE COQUE

Em AnáliseInvention Patent

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Application data

Number

PI7803524

Type

Invention Patent

Filing

06/01/1978

Publication

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Progress at the INPI

Filing06/01/78
Publication
Examination
Allowance03/22/83
Grant11/29/83
Terminated02/25/86

The patent was granted on 11/29/1983 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: 02/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

HORITSU KIKAI KOGYO CO LTD

Inventors

M. Y. (pessoa física)

Technical data

IPC Classification

C10B 25/16

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

02/25/1986

RPI 801

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

16.3

02/14/1984

RPI 695

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

08/02/1983

RPI 667

Deferimento

#9.1

03/22/1983

RPI 648

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