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Official data from INPI

ARMACAO DE ARMAZENAMENTO PARA ELEMENTOS IGNIFUGOS

Arquivada/ExtintaUtility Model

Application data

Number

MU5700941

Type

Utility Model

Filing

08/07/1976

Publication

-

Progress at the INPI

  1. Filing08/07/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant04/27/82
  6. Expired08/16/88

The letters patent expired on 08/16/1988: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

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Latest action published by the INPI: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

NUKEM GMBH

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Inventors

K. W. (pessoa física)

S. P. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

08/16/1988

RPI 930

Concessão da patente

#16.1

04/27/1982

RPI 601

Notificação para pagamento de retribuição

#13.1

01/26/1982

RPI 588

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