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Official data from INPI

LIGA À BASE DE COBALTO RESISTENTE À CORROSÃO E AO DESGASTE

Arquivada/ExtintaInvention Patent

Application data

Number

PI9000671

Type

Invention Patent

Filing

02/14/1990

Publication

01/15/1991

Progress at the INPI

  1. Filing02/14/90
  2. Publication01/15/91
  3. Examination06/04/91
  4. Allowance11/11/97
  5. Grant08/25/98
  6. Expired01/02/13

The letters patent expired on 01/02/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 01/02/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Haynes International, Inc

US

See this company's full portfolio

Inventors

A. A. (pessoa física)

US

P. C. (pessoa física)

US

S. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

340.814 · 04/17/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/02/2010

01/02/2013

RPI 2191

Concessão da patente

#16.1

08/25/1998

RPI 1444

Deferimento

#9.1

11/11/1997

RPI 1406

6.2

03/26/1996

RPI 1321

Solicitação de exame técnico

#4.1

06/04/1991

RPI 1070

Publicação do pedido de patente

#3.1

01/15/1991

RPI 1050

Pedido de patente depositado

#2.1

06/05/1990

RPI 1021

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