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Official data from INPI

LIGA RESISTENTE À CORROSÃO

DeferidaInvention Patent

Application data

Number

PI8307665

Type

Invention Patent

Filing

12/27/1983

Publication

12/11/1984

Progress at the INPI

  1. Filing12/27/83
  2. Publication12/11/84
  3. Examination09/17/85
  4. Allowance10/17/89
  5. Grant04/24/90
  6. Terminated04/30/96

The patent was granted on 04/24/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/17/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Nisshin Steel Co. Ltda.

JP

Inventors

K. M. (pessoa física)

K. H. (pessoa física)

JP

S. M. (pessoa física)

US

T. F. (pessoa física)

US

Y. U. (pessoa física)

US

Technical data

IPC Classification

Priority claims

JP

230832/1982 · 12/29/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

10/17/1989

RPI 991

Exigência - art. 36 da LPI

#6.1

05/09/1989

RPI 968

Solicitação de exame técnico

#4.1

09/17/1985

RPI 778

Notificação de entrada na fase nacional - PCT

#1.3

12/11/1984

RPI 738

Anuidade - prazo legal encerrado

#18.2

04/30/1996

RPI 1326

Concessão da patente

#16.1

04/24/1990

RPI 1015

Notificação para pagamento de retribuição

#13.1

02/13/1990

RPI 1006

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