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Official data from INPI

COMPOSIÇÃO DE SILOXANO TENDO APERFEIÇOADA ESTABILIDADE - TÉRMICA NA FORMA CURADA E PROCESSO PARA SUA PREPARAÇÃO.

ConcedidaInvention Patent

Application data

Number

PI8001225

Type

Invention Patent

Filing

02/29/1980

Publication

-

Progress at the INPI

  1. Filing02/29/80
  2. Publication
  3. Examination11/17/81
  4. Allowance08/02/88
  5. Grant04/25/89
  6. Terminated11/03/93

The patent was granted on 04/25/1989 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: 04/25/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

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Inventors

M. R. (pessoa física)

M. J. (pessoa física)

Technical data

IPC Classification

Priority claims

US

016.870 · 03/02/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

04/25/1989

RPI 966

Deferimento

#9.1

08/02/1988

RPI 928

Exigência - art. 36 da LPI

#6.1

09/29/1987

RPI 884

Conhecimento de parecer técnico

#7.1

06/21/1983

RPI 661

6.2

11/03/1982

RPI 628

Solicitação de exame técnico

#4.1

11/17/1981

RPI 578

Anuidade - prazo legal encerrado

#18.2

11/03/1993

RPI 1196

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