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Official data from INPI

Composição organopolisiloxânicas estáveis durente a esticagem em ausência de ar.

ConcedidaInvention Patent

Application data

Number

PI8003530

Type

Invention Patent

Filing

06/06/1980

Publication

-

Progress at the INPI

  1. Filing06/06/80
  2. Publication
  3. Examination12/21/82
  4. Allowance02/09/88
  5. Grant08/30/88
  6. Expired09/12/95

The letters patent expired on 09/12/1995: 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: 08/30/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

G. A. (pessoa física)

L. B. (pessoa física)

L. M. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

79 14675 · 06/08/1979

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/30/1988

RPI 932

Notificação para pagamento de retribuição

#13.1

06/07/1988

RPI 920

Deferimento

#9.1

02/09/1988

RPI 903

Exigência - art. 36 da LPI

#6.1

09/22/1987

RPI 883

Conhecimento de parecer técnico

#7.1

11/08/1983

RPI 681

Solicitação de exame técnico

#4.1

12/21/1982

RPI 635

Carta-patente expirada

#21.1

09/12/1995

RPI 1293

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