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Official data from INPI

PROCESSO PARA ESTABELECER ISOTERMICIDADE SUBSTANCIAL E,UMA REACAO CATALITICA HETEROGENEA,E APARELHO PARA CONVERSAO CATALITICA

Em AnáliseInvention Patent

Application data

Number

PI7804053

Type

Invention Patent

Filing

06/27/1977

Publication

-

Progress at the INPI

  1. Filing06/27/77
  2. Publication
  3. Examination
  4. Allowance02/28/84
  5. Grant08/28/84
  6. Terminated05/17/88

The patent was granted on 08/28/1984 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: 05/17/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

MINNESOTA MINING & MFG

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Inventors

D. T. (pessoa física)

W. J. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Anuidade - prazo legal encerrado

#18.2

05/17/1988

RPI 917

Concessão da patente

#16.1

08/28/1984

RPI 723

Notificação para pagamento de retribuição

#13.1

06/12/1984

RPI 712

Deferimento

#9.1

02/28/1984

RPI 697

Exigência - art. 36 da LPI

#6.1

08/02/1983

RPI 667

Exigência - art. 36 da LPI

#6.1

10/26/1982

RPI 627

6.2

10/06/1981

RPI 572

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