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Official data from INPI

COMPOSIÇÃO PLASTIFICANTE PARA INTERCALAR POLIVINILBUTIRAL EM UMA VIDRAÇA FOLHEADA, E, COMPOSIÇÃO DE POLIVINILBUTIRAL PLASTIFICADO

ConcedidaInvention Patent

Application data

Number

PI8105541

Type

Invention Patent

Filing

08/31/1981

Publication

05/18/1982

Progress at the INPI

  1. Filing08/31/81
  2. Publication05/18/82
  3. Examination07/10/84
  4. Allowance06/14/88
  5. Grant12/27/88
  6. In force08/31/01

The patent is in force and subject to a compulsory licence request: third parties have asked for authorisation to exploit the technology.

Protection valid until:08/31/2001

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Latest action published by the INPI: 12/27/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

S. V. (pessoa física)

FR

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Inventors

D. D. (pessoa física)

FR

Technical data

IPC Classification

Priority claims

FR

8018862 · 09/01/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/27/1988

RPI 949

Notificação para pagamento de retribuição

#13.1

10/04/1988

RPI 937

Deferimento

#9.1

06/14/1988

RPI 921

Exigência - art. 36 da LPI

#6.1

11/24/1987

RPI 892

Conhecimento de parecer técnico

#7.1

04/09/1985

RPI 755

Solicitação de exame técnico

#4.1

07/10/1984

RPI 716

Publicação do pedido de patente

#3.1

05/18/1982

RPI 604

Pedido de patente depositado

#2.1

10/13/1981

RPI 573

Pedido de licença compulsória

#20.1

06/14/1994

RPI 1228

20.4

06/07/1994

RPI 1227

20.7

05/31/1994

RPI 1226

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