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Official data from INPI

COMPOSIÇÃO TERNÁRIA DE POLICARBONATO

ConcedidaInvention Patent

Application data

Number

PI8005457

Type

Invention Patent

Filing

08/28/1980

Publication

-

Progress at the INPI

  1. Filing08/28/80
  2. Publication
  3. Examination06/21/83
  4. Allowance07/19/88
  5. Grant02/28/89
  6. Terminated08/02/94

The patent was granted on 02/28/1989 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: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Electric Company

US

See this company's full portfolio

Inventors

G. E. (pessoa física)

P. L. (pessoa física)

Technical data

IPC Classification

Priority claims

US

69.824 · 08/27/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1989

RPI 958

Notificação para pagamento de retribuição

#13.1

11/16/1988

RPI 943

Deferimento

#9.1

07/19/1988

RPI 926

Exigência - art. 36 da LPI

#6.1

08/18/1987

RPI 878

Solicitação de exame técnico

#4.1

06/21/1983

RPI 661

Anuidade - prazo legal encerrado

#18.2

08/02/1994

RPI 1235

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