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Official data from INPI

DIFUSOR DE AR APLICAVEL NO TRATAMENTO DE ESGOTOS SANITARIOS OU INDUSTRIAIS

Em AnáliseInvention Patent
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Application data

Number

PI7605253

Type

Invention Patent

Filing

08/11/1976

Publication

-
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Progress at the INPI

  1. Filing08/11/76
  2. Publication
  3. Examination
  4. Allowance
  5. Grant05/25/82
  6. Terminated06/14/88

The patent was granted on 05/25/1982 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

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

Applicants and inventors

Applicants

R. M. (pessoa física)

Inventors

R. M. (pessoa física)

Technical data

IPC Classification

C02C 1/12

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

06/14/1988

RPI 921

Cessão de direito de exploração

#22.1

09/01/1987

RPI 880

Cessão de direito de exploração

#22.1

06/18/1985

RPI 765

Cessão de direito de exploração

#22.1

04/02/1985

RPI 754

Concessão da patente

#16.1

05/25/1982

RPI 605

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