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Official data from INPI

PROCESSO DE PRESERVACAO DE MADEIRA CONTRA DECOMPOSICAO,CORPO DE ELEMENTO PRESERVATIVO DE MADEIRA E PROCESSO DE SUA FORMACAO

Concessão AnuladaInvention Patent

Application data

Number

PI7807344

Type

Invention Patent

Filing

11/11/1977

Publication

-

Progress at the INPI

  1. Filing11/11/77
  2. Publication
  3. Examination
  4. Allowance08/16/83
  5. Grant02/28/84
  6. Expired05/24/94

The letters patent expired on 05/24/1994: 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: 05/15/1984. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

WOOD SLIMP GMBH

Inventors

B. C. (pessoa física)

D. J. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

16.3

05/15/1984

RPI 708

Concessão da patente

#16.1

02/28/1984

RPI 697

Deferimento

#9.1

08/16/1983

RPI 669

Conhecimento de parecer técnico

#7.1

10/19/1982

RPI 626

6.2

12/01/1981

RPI 580

Carta-patente expirada

#21.1

05/24/1994

RPI 1225

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