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Official data from INPI

COMPOSIÇÕES À BASE DE POLÍMERO DE CLORETO DE VINILA QUE APRESENTAM UM CARATER FUMÍGENO REDUZIDO

ConcedidaInvention Patent

Application data

Number

PI8301526

Type

Invention Patent

Filing

03/24/1983

Publication

12/06/1983

Progress at the INPI

  1. Filing03/24/83
  2. Publication12/06/83
  3. Examination12/03/85
  4. Allowance01/31/89
  5. Grant08/29/89
  6. Expired07/01/08

The letters patent expired on 07/01/2008: 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: 08/29/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Solvay & Cie.

BE

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Inventors

E. H. (pessoa física)

BE

Technical data

IPC Classification

Priority claims

FR

82.05275 · 03/25/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

08/29/1989

RPI 984

Notificação para pagamento de retribuição

#13.1

06/06/1989

RPI 972

Deferimento

#9.1

01/31/1989

RPI 954

Exigência - art. 36 da LPI

#6.1

06/28/1988

RPI 923

Solicitação de exame técnico

#4.1

12/03/1985

RPI 789

Publicação do pedido de patente

#3.1

12/06/1983

RPI 685

Pedido de patente depositado

#2.1

05/10/1983

RPI 655

Carta-patente expirada

#21.1

Patente extinta em 24/03/98

07/01/2008

RPI 1956

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