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Official data from INPI

COMPOSIÇÃO DE LIGA À BASE DE TITÂNIO E ESTRUTURA DE ÂNODO PARA USO EM UM PROCESSO DE ELETRÓLISE

Arquivada/ExtintaInvention PatentPCT · US1987002999

Application data

Number

PI8707886

Type

Invention Patent

Filing

11/12/1987

Publication

10/03/1989

PCT

US1987002999

Progress at the INPI

  1. Filing11/12/87
  2. Publication10/03/89
  3. Examination06/19/90
  4. Allowance11/21/95
  5. Grant07/30/96
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 10/03/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

K. C. (pessoa física)

US

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Inventors

O. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

931.993 · 11/18/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Notificação de entrada na fase nacional - PCT

#1.3

10/03/1989

RPI 989

Carta-patente expirada

#21.1

Patente extinta em 12/11/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

07/30/1996

RPI 1339

Republicação - classificação IPC

#15.11

12/19/1995

RPI 1307

Deferimento

#9.1

11/21/1995

RPI 1303

Solicitação de exame técnico

#4.1

06/19/1990

RPI 1023

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