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Official data from INPI

PROCESSO PARA PREPARAR UM ISOCIANURATO ETILENICAMENTE INSATURADO

ConcedidaInvention Patent

Application data

Number

PI7804849

Type

Invention Patent

Filing

07/27/1977

Publication

-

Progress at the INPI

  1. Filing07/27/77
  2. Publication
  3. Examination
  4. Allowance08/24/82
  5. Grant03/29/83
  6. Terminated01/28/92

The patent was granted on 03/29/1983 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: 03/29/1983. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

ICI AMERICA INC

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Inventors

M. K. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

03/29/1983

RPI 649

Notificação para pagamento de retribuição

#13.1

01/11/1983

RPI 638

Deferimento

#9.1

08/24/1982

RPI 618

6.2

10/13/1981

RPI 573

Anuidade - prazo legal encerrado

#18.2

01/28/1992

RPI 1104

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