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Official data from INPI

COMPOSIÇÃO DO TIPO EM BASTÃO E COMPOSIÇÃO SÓLIDA DE PURIFICADOR DE AR

ConcedidaInvention Patent

Application data

Number

PI7908284

Type

Invention Patent

Filing

12/18/1979

Publication

-

Progress at the INPI

  1. Filing12/18/79
  2. Publication
  3. Examination07/27/82
  4. Allowance05/09/89
  5. Grant10/24/89
  6. Terminated04/26/94

The patent was granted on 10/24/1989 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: 10/24/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Dragoco, Inc

US

Inventors

E. Y. (pessoa física)

US

Technical data

Priority claims

US

76.663 · 09/18/1979

US

971.113 · 12/19/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

10/24/1989

RPI 992

Notificação para pagamento de retribuição

#13.1

09/05/1989

RPI 985

Deferimento

#9.1

05/09/1989

RPI 968

Exigência - art. 36 da LPI

#6.1

04/12/1988

RPI 912

Conhecimento de parecer técnico

#7.1

09/27/1983

RPI 675

6.2

01/18/1983

RPI 639

Solicitação de exame técnico

#4.1

07/27/1982

RPI 614

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: A61K 7/00; A61L 9/01.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

04/26/1994

RPI 1221

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