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Official data from INPI

ESTABILIZADOR PARA ALDEIDOS,ALDEIDOS ESTABILIZADOS,PROCESSO PARA ESTABILIZAR ALDEIDOS E COMPOSICAO

ConcedidaInvention Patent

Application data

Number

PI8301502

Type

Invention Patent

Filing

06/16/1982

Publication

04/17/1984

Progress at the INPI

  1. Filing06/16/82
  2. Publication04/17/84
  3. Examination06/03/86
  4. Allowance10/04/88
  5. Grant06/27/89
  6. Terminated02/18/92

The patent was granted on 06/27/1989 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: 06/27/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

PENNWALT CORP [US]

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Inventors

S. R. (pessoa física)

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/27/1989

RPI 975

Notificação para pagamento de retribuição

#13.1

01/24/1989

RPI 953

Deferimento

#9.1

10/04/1988

RPI 937

Exigência - art. 36 da LPI

#6.1

04/12/1988

RPI 912

Solicitação de exame técnico

#4.1

06/03/1986

RPI 815

Publicação do pedido de patente

#3.1

04/17/1984

RPI 704

Pedido de patente depositado

#2.1

05/10/1983

RPI 655

Anuidade - prazo legal encerrado

#18.2

02/18/1992

RPI 1107

20.5

10/22/1991

RPI 1090

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