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Official data from INPI

PROCESSO E APARELHAGEM PARA CORTAR MÚLTIPLAS CAMADAS DE UM FILME OU PLACA FORMADO DE UM MATERIAL TERMOPLÁSTICO, E ELEMENTO METÁLICO ALONGADO

ConcedidaInvention Patent

Application data

Number

PI8303559

Type

Invention Patent

Filing

06/29/1983

Publication

02/20/1985

Progress at the INPI

  1. Filing06/29/83
  2. Publication02/20/85
  3. Examination03/04/87
  4. Allowance05/02/89
  5. Grant11/28/89
  6. Terminated05/02/95

The patent was granted on 11/28/1989 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: 11/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

D. T. (pessoa física)

US

Technical data

IPC Classification

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

11/28/1989

RPI 997

Notificação para pagamento de retribuição

#13.1

09/05/1989

RPI 985

Deferimento

#9.1

05/02/1989

RPI 967

Exigência - art. 36 da LPI

#6.1

06/21/1988

RPI 922

Solicitação de exame técnico

#4.1

03/04/1987

RPI 854

Publicação do pedido de patente

#3.1

02/20/1985

RPI 748

Pedido de patente depositado

#2.1

08/16/1983

RPI 669

Anuidade - prazo legal encerrado

#18.2

05/02/1995

RPI 1274

22.2

03/26/1991

RPI 1060

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