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Official data from INPI

PROCESSO E APARELHO PARA ESTABILIZAÇÃO DE COPOLÍMEROS DE ACETAL.

ConcedidaInvention Patent

Application data

Number

PI8300814

Type

Invention Patent

Filing

02/18/1983

Publication

11/16/1983

Progress at the INPI

  1. Filing02/18/83
  2. Publication11/16/83
  3. Examination11/12/85
  4. Allowance10/04/88
  5. Grant07/25/89
  6. Terminated04/18/95

The patent was granted on 07/25/1989 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: 07/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

C. C. (pessoa física)

US

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Inventors

C. M. (pessoa física)

Technical data

IPC Classification

Priority claims

US

350.502 · 02/19/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/25/1989

RPI 979

Notificação para pagamento de retribuição

#13.1

01/24/1989

RPI 953

Deferimento

#9.1

10/04/1988

RPI 937

Solicitação de exame técnico

#4.1

11/12/1985

RPI 786

Publicação do pedido de patente

#3.1

11/16/1983

RPI 682

Pedido de patente depositado

#2.1

04/05/1983

RPI 650

Anuidade - prazo legal encerrado

#18.2

04/18/1995

RPI 1272

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