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Official data from INPI

SEM TITULO

ArquivadaInvention Patent

Application data

Number

PI8504416

Type

Invention Patent

Filing

09/20/1985

Publication

07/15/1986

Progress at the INPI

  1. Filing09/20/85
  2. Publication07/15/86
  3. Examination
  4. Allowance
  5. Grant11/26/91
  6. Expired07/15/08

The letters patent expired on 07/15/2008: 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

Aichelin Indústria e Comércio de Fornos Industriais Ltda.

SP, BR

Inventors

B. M. (pessoa física)

M. H. (pessoa física)

R. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

10/04/1988

RPI 937

Publicação do pedido de patente

#3.1

07/15/1986

RPI 821

Pedido de patente depositado

#2.1

11/26/1985

RPI 788

Carta-patente expirada

#21.1

Patente extinta em 20/09/2000

07/15/2008

RPI 1958

Concessão da patente

#16.1

11/26/1991

RPI 1095

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