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Official data from INPI

PROCESSO PARA PRODUZIR UM ARTIGO DE POLICARBONATO DE RESISTÊNCIA APERFEIÇOADA AOS ESTRAGOS, ABRASÃO, RISCOS E SOLVENTES QUÍMICOS E PARA PROPORCIONAR UM REVESTIMENTO DE ORGANO-POLISILOXANO

ConcedidaInvention PatentPCT · US1979000910

Application data

Number

PI7908892

Type

Invention Patent

Filing

10/29/1979

Publication

-

PCT

US1979000910

Progress at the INPI

  1. Filing10/29/79
  2. Publication
  3. Examination06/08/82
  4. Allowance08/02/88
  5. Grant02/28/89
  6. Expired05/09/95

The letters patent expired on 05/09/1995: 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: 02/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

General Electric Company

US

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Inventors

G. J. (pessoa física)

Technical data

Priority claims

US

959.588 · 11/13/1978

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

02/28/1989

RPI 958

Notificação para pagamento de retribuição

#13.1

11/29/1988

RPI 945

Deferimento

#9.1

08/02/1988

RPI 928

Exigência - art. 36 da LPI

#6.1

09/08/1987

RPI 881

Conhecimento de parecer técnico

#7.1

01/24/1984

RPI 692

Solicitação de exame técnico

#4.1

06/08/1982

RPI 607

Carta-patente expirada

#21.1

05/09/1995

RPI 1275

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