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Official data from INPI

LIGAS DE RESISTENTES À OXIDAÇÃO.

Arquivada/ExtintaInvention Patent

Application data

Number

PI9006390

Type

Invention Patent

Filing

12/14/1990

Publication

09/24/1991

Progress at the INPI

  1. Filing12/14/90
  2. Publication09/24/91
  3. Examination05/26/92
  4. Allowance02/23/99
  5. Grant07/27/99
  6. Expired05/28/13

The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Inco Alloys International, Inc

US

See this company's full portfolio

Inventors

D. J. (pessoa física)

US

J. S. (pessoa física)

US

K. H. (pessoa física)

US

R. F. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

452.284 · 12/15/1989

US

613.081 · 11/19/1990

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 14/12/2010

05/28/2013

RPI 2212

Concessão da patente

#16.1

07/27/1999

RPI 1490

Deferimento

#9.1

02/23/1999

RPI 1468

6.2

03/19/1996

RPI 1320

Solicitação de exame técnico

#4.1

05/26/1992

RPI 1121

Publicação do pedido de patente

#3.1

09/24/1991

RPI 1086

Pedido de patente depositado

#2.1

06/04/1991

RPI 1070

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