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Official data from INPI

COMPOSIÇÃO DE REVESTIMENTO COM RESINA DE POLIÉSTER, PELÍCULA, ARTIGO COMPOSTO E PROCESSO PARA REVESTIR UM SUBSTRATO FLEXÍVEL.

ConcedidaInvention Patent

Application data

Number

PI8108060

Type

Invention Patent

Filing

12/11/1981

Publication

09/21/1982

Progress at the INPI

  1. Filing12/11/81
  2. Publication09/21/82
  3. Examination09/20/83
  4. Allowance08/04/87
  5. Grant12/29/87
  6. In force12/11/01

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:12/11/2001

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Latest action published by the INPI: 12/29/1987. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Ashland Inc

US

See this company's full portfolio

Inventors

B. R. (pessoa física)

Technical data

IPC Classification

Priority claims

US

216.323 · 12/15/1980

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

12/29/1987

RPI 897

Notificação para pagamento de retribuição

#13.1

11/24/1987

RPI 892

Deferimento

#9.1

08/04/1987

RPI 876

Exigência - art. 36 da LPI

#6.1

07/31/1984

RPI 719

Solicitação de exame técnico

#4.1

09/20/1983

RPI 674

Publicação do pedido de patente

#3.1

09/21/1982

RPI 622

Pedido de patente depositado

#2.1

02/02/1982

RPI 589

20.4

12/19/1995

RPI 1307

20.7

11/23/1993

RPI 1199

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