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Official data from INPI

ESPESSANTE DE POLIÉSTER PARA SISTEMAS AQUOSOS QUE CONTEM ADITIVOS PARA EFICÁCIA ESPESSANTE AUMENTADA

Em AnáliseInvention Patent

Application data

Number

PI8200373

Type

Invention Patent

Filing

01/25/1982

Publication

04/12/1983

Progress at the INPI

Technical opinion to answer
  1. Filing01/25/82
  2. Publication04/12/83
  3. Examination07/17/84
  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: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

B. C. (pessoa física)

US

Inventors

E. P. (pessoa física)

US

P. D. (pessoa física)

US

Technical data

Priority claims

US

257,638 · 04/27/1981

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Retificação

#15.3

08/16/1988

RPI 930

Conhecimento de parecer técnico

#7.1

03/19/1985

RPI 752

Solicitação de exame técnico

#4.1

07/17/1984

RPI 717

Publicação do pedido de patente

#3.1

04/12/1983

RPI 651

Pedido de patente depositado

#2.1

03/16/1982

RPI 595

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