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Official data from INPI

PROCESSO DE FORMAÇÃO DE PAREDES LATERAIS

PublicadaInvention Patent

Application data

Number

PI8700836

Type

Invention Patent

Filing

02/23/1987

Publication

12/22/1987

Progress at the INPI

  1. Filing02/23/87
  2. Publication12/22/87
  3. Examination08/07/90
  4. Allowance06/07/94
  5. Grant11/29/94
  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: 12/22/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

I. C. (pessoa física)

US

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Inventors

B. Z. (pessoa física)

CH

P. B. (pessoa física)

CH

P. V. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

EP

86104217.4 · 03/27/1986

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

12/22/1987

RPI 896

Pedido de patente depositado

#2.1

06/16/1987

RPI 869

Carta-patente expirada

#21.1

Patente extinta em 23/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

11/29/1994

RPI 1252

Deferimento

#9.1

06/07/1994

RPI 1227

6.2

09/28/1993

RPI 1191

Solicitação de exame técnico

#4.1

08/07/1990

RPI 1027

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