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Official data from INPI

PROCESSO E DISPOSITIVO PARA O TRANSPORTE PNEUMATICO DE MATERIAL A GRANEL,EM FORMA GRANULADA E FLUENTE,MASSAS VISCOSAS,LODOS OU SEMELHANTES MATERIAIS,EM UMA TUBULACAO DE TRANSPORTE

ConcedidaInvention Patent

Application data

Number

PI7708436

Type

Invention Patent

Filing

12/20/1976

Publication

-

Progress at the INPI

  1. Filing12/20/76
  2. Publication
  3. Examination
  4. Allowance09/21/82
  5. Grant04/26/83
  6. Terminated08/28/90

The patent was granted on 04/26/1983 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: 04/26/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MITTELMANN GMBH & CO KG

Inventors

K. A. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/26/1983

RPI 653

Notificação para pagamento de retribuição

#13.1

01/25/1983

RPI 640

Deferimento

#9.1

09/21/1982

RPI 622

Exigência - art. 36 da LPI

#6.1

04/13/1982

RPI 599

Exigência - art. 36 da LPI

#6.1

10/27/1981

RPI 575

Anuidade - prazo legal encerrado

#18.2

08/28/1990

RPI 1030

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