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Official data from INPI

PROCESSO PARA A PRODUCAO DE FOLHAS REFORCADAS MEDIANTE IMPREGNACAO DE ESTRUTURAS PLANAS FIBROSAS TAIS COMO PAPEIS BRUTOS, VELOS FIBROSOS E SEMELHANTES, E FOLHAS REFORCADAS ASSIM PRODUZIDAS

ConcedidaInvention Patent

Application data

Number

PI8000296

Type

Invention Patent

Filing

01/27/1979

Publication

-

Progress at the INPI

  1. Filing01/27/79
  2. Publication
  3. Examination06/22/82
  4. Allowance10/23/84
  5. Grant04/30/85
  6. Expired05/16/95

The letters patent expired on 05/16/1995: 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: 04/30/1985. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ROEHM GMBH

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Inventors

B. H. (pessoa física)

H. H. (pessoa física)

L. G. (pessoa física)

M. H. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/30/1985

RPI 758

Deferimento

#9.1

10/23/1984

RPI 731

Exigência - art. 36 da LPI

#6.1

05/22/1984

RPI 709

Exigência - art. 36 da LPI

#6.1

11/08/1983

RPI 681

Solicitação de exame técnico

#4.1

06/22/1982

RPI 609

Carta-patente expirada

#21.1

05/16/1995

RPI 1276

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