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Official data from INPI

PROCESSO PARA EXTRUÇÃO DE POLÍMEROS DE ETILENO GRANULADOS DE BAIXA DENSIDADE.

Em AnáliseInvention Patent

Application data

Number

PI8104945

Type

Invention Patent

Filing

07/31/1981

Publication

04/20/1982

Progress at the INPI

Technical opinion to answer
  1. Filing07/31/81
  2. Publication04/20/82
  3. Examination08/23/83
  4. Allowance
  5. Grant
  6. In force

The INPI issued a technical opinion on patentability. The applicant must respond for examination to continue.

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Latest action published by the INPI: 03/01/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

B. T. (pessoa física)

Technical data

Priority claims

US

174.542 · 08/01/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

03/01/1988

RPI 906

Conhecimento de parecer técnico

#7.1

09/11/1984

RPI 725

Solicitação de exame técnico

#4.1

08/23/1983

RPI 670

Publicação do pedido de patente

#3.1

04/20/1982

RPI 600

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era B29F 3/00.

03/27/2018

RPI 2464

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