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Official data from INPI

APARELHO E MÉTODO PARA PROCESSAR CONTINUAMENTE MATERIAL TERMOPLÁSTICO SOB POTÊNCIA CONTROLÁVEL

PublicadaInvention Patent

Application data

Number

PI8606072

Type

Invention Patent

Filing

11/20/1986

Publication

09/15/1987

Progress at the INPI

  1. Filing11/20/86
  2. Publication09/15/87
  3. Examination03/20/90
  4. Allowance04/19/94
  5. Grant11/29/94
  6. Expired07/22/08

The letters patent expired on 07/22/2008: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.

Talk to a specialist

Latest action published by the INPI: 09/15/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

F. C. (pessoa física)

US

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Inventors

D. V. (pessoa física)

US

G. M. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

801.146 · 11/22/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/15/1987

RPI 882

Pedido de patente depositado

#2.1

04/22/1987

RPI 861

Carta-patente expirada

#21.1

Patente extinta em 20/11/2001

07/22/2008

RPI 1959

Concessão da patente

#16.1

11/29/1994

RPI 1252

Notificação para pagamento de retribuição

#13.1

08/16/1994

RPI 1237

Deferimento

#9.1

04/19/1994

RPI 1220

Exigência - art. 36 da LPI

#6.1

07/20/1993

RPI 1181

Solicitação de exame técnico

#4.1

03/20/1990

RPI 1010

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