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Official data from INPI

PROCESSO PARA EXTRACAO DE AMONIACO DE SOLUCOES CONTENDO AMONIACO

Em AnáliseInvention Patent

Application data

Number

PI7800689

Type

Invention Patent

Filing

02/09/1977

Publication

-

Progress at the INPI

  1. Filing02/09/77
  2. Publication
  3. Examination
  4. Allowance10/26/82
  5. Grant05/31/83
  6. Terminated02/25/86

The patent was granted on 05/31/1983 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: 02/25/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

OTTO & CO GMBH

SIDMAR NV

Inventors

H. E. (pessoa física)

W. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

02/25/1986

RPI 801

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

16.3

07/26/1983

RPI 666

Concessão da patente

#16.1

05/31/1983

RPI 658

Notificação para pagamento de retribuição

#13.1

03/15/1983

RPI 647

Deferimento

#9.1

10/26/1982

RPI 627

Exigência - art. 36 da LPI

#6.1

01/26/1982

RPI 588

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