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Official data from INPI

ACO INOXIDAVEL FUNDIDO EM DUAS FASES TENDO ALTA RESISTENCIA A FADIGA POR CORROSAO

ConcedidaInvention Patent

Application data

Number

PI8300854

Type

Invention Patent

Filing

02/23/1982

Publication

11/16/1983

Progress at the INPI

  1. Filing02/23/82
  2. Publication11/16/83
  3. Examination01/31/84
  4. Allowance03/15/88
  5. Grant08/30/88
  6. Terminated04/18/95

The patent was granted on 08/30/1988 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: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

KUBOTA LTD [JP]

Inventors

H. H. (pessoa física)

N. H. (pessoa física)

S. H. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1988

RPI 932

Deferimento

#9.1

03/15/1988

RPI 908

Exigência - art. 36 da LPI

#6.1

04/22/1987

RPI 861

Conhecimento de parecer técnico

#7.1

04/16/1985

RPI 756

Solicitação de exame técnico

#4.1

01/31/1984

RPI 693

Publicação do pedido de patente

#3.1

11/16/1983

RPI 682

Pedido de patente depositado

#2.1

04/05/1983

RPI 650

Anuidade - prazo legal encerrado

#18.2

04/18/1995

RPI 1272

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