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Official data from INPI

PROCESSO PARA A ELIMINACAO DE DIOXIDO DE ENXOFRE DE GASES,ESPECIALMENTE DE GASES DE ESCAPAMENTO INDUSTRIAIS

Em AnáliseInvention Patent

Application data

Number

PI7805894

Type

Invention Patent

Filing

09/13/1977

Publication

-

Progress at the INPI

  1. Filing09/13/77
  2. Publication
  3. Examination
  4. Allowance04/19/83
  5. Grant11/29/83
  6. Terminated06/14/88

The patent was granted on 11/29/1983 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 06/14/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OTTO & CO GMBH

SIDMAR NV

Inventors

H. E. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Concessão da patente

#16.1

11/29/1983

RPI 684

Notificação para pagamento de retribuição

#13.1

09/06/1983

RPI 672

Deferimento

#9.1

04/19/1983

RPI 652

Exigência - art. 36 da LPI

#6.1

07/13/1982

RPI 612

6.2

12/22/1981

RPI 583

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