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Official data from INPI

ARMAÇÃO PRÉ-TENSIONADA PARA LAMINAÇÃO OU FUNDIÇÃO LAMINADA

PublicadaInvention Patent

Application data

Number

PI8801799

Type

Invention Patent

Filing

04/14/1988

Publication

03/21/1989

Progress at the INPI

  1. Filing04/14/88
  2. Publication03/21/89
  3. Examination01/23/90
  4. Allowance01/02/96
  5. Grant09/24/96
  6. Expired09/02/08

The letters patent expired on 09/02/2008: 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: 03/21/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Lauener Engineering Ag

CH

Lauener Engineering Ltd

US

Inventors

B. F. (pessoa física)

CH

R. R. (pessoa física)

CH

Technical data

IPC Classification

Priority claims

CH

03276/87 · 08/26/1987

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

03/21/1989

RPI 961

Pedido de patente depositado

#2.1

09/20/1988

RPI 935

Carta-patente expirada

#21.1

Patente extinta em 14/04/2003

09/02/2008

RPI 1965

Alteração de nome deferida

#25.4

12/23/1997

RPI 1409

Concessão da patente

#16.1

09/24/1996

RPI 1347

Deferimento

#9.1

01/02/1996

RPI 1309

Exigência - art. 36 da LPI

#6.1

08/09/1994

RPI 1236

Solicitação de exame técnico

#4.1

01/23/1990

RPI 1003

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