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Official data from INPI

PROCESSO PARA FABRICAÇÃO DE UM CORPO DE ZIRCÔNIA PARCIALMENTE ESTABILIZADO,COM MAGNÉSIA

Em AnáliseInvention Patent

Application data

Number

PI8700154

Type

Invention Patent

Filing

01/15/1987

Publication

12/22/1987

Progress at the INPI

  1. Filing01/15/87
  2. Publication12/22/87
  3. Examination10/04/88
  4. Allowance02/07/95
  5. Grant07/25/95
  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: 10/04/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Didier-Werke A.G.

DE

Didier-Werke AG

DE

Inventors

E. B. (pessoa física)

US

K. R. (pessoa física)

US

L. J. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

825.515 · 02/03/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

10/04/1988

RPI 937

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

05/12/1987

RPI 864

Carta-patente expirada

#21.1

Patente extinta em 15/01/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

07/25/1995

RPI 1286

Deferimento

#9.1

02/07/1995

RPI 1262

Exigência - art. 36 da LPI

#6.1

11/16/1993

RPI 1198

14.1

03/01/1990

RPI 1007

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