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Official data from INPI

Processo para união entre um alastômero e uma carga principalmente à base de um composto de sílica.

ConcedidaInvention Patent

Application data

Number

PI8101071

Type

Invention Patent

Filing

02/23/1981

Publication

-

Progress at the INPI

  1. Filing02/23/81
  2. Publication
  3. Examination09/20/83
  4. Allowance10/15/85
  5. Grant05/27/86
  6. Terminated02/04/92

The patent was granted on 05/27/1986 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: 05/27/1986. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Rhone-Poulenc Industries

FR

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Inventors

M. J. (pessoa física)

M. J. (pessoa física)

S. G. (pessoa física)

Technical data

IPC Classification

Priority claims

FR

80 04037 · 02/25/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

05/27/1986

RPI 814

Deferimento

#9.1

10/15/1985

RPI 782

Republicação - classificação IPC

#15.11

09/03/1985

RPI 776

Exigência - art. 36 da LPI

#6.1

01/08/1985

RPI 742

Conhecimento de parecer técnico

#7.1

04/17/1984

RPI 704

Solicitação de exame técnico

#4.1

09/20/1983

RPI 674

Anuidade - prazo legal encerrado

#18.2

02/04/1992

RPI 1105

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