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Official data from INPI

MISTURADOR DE EXTRUSOR

ConcedidaInvention Patent

Application data

Number

PI8208088

Type

Invention Patent

Filing

03/15/1982

Publication

08/14/1984

Progress at the INPI

  1. Filing03/15/82
  2. Publication08/14/84
  3. Examination05/28/85
  4. Allowance10/14/86
  5. Grant06/30/87
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 06/30/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

RUBBER & PLASTIC RES ASS [GB]

Inventors

G. [. (pessoa física)

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

06/30/1987

RPI 871

Notificação para pagamento de retribuição

#13.1

03/10/1987

RPI 855

Deferimento

#9.1

10/14/1986

RPI 834

Exigência - art. 36 da LPI

#6.1

02/25/1986

RPI 801

Solicitação de exame técnico

#4.1

05/28/1985

RPI 762

Notificação de entrada na fase nacional - PCT

#1.3

08/14/1984

RPI 721

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B29F 3/02.

03/27/2018

RPI 2464

Carta-patente expirada

#21.1

Patente extinta em 15/03/97

08/19/2008

RPI 1963

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