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Official data from INPI

LAMINADOS

PublicadaInvention Patent

Application data

Number

PI8701351

Type

Invention Patent

Filing

02/25/1987

Publication

09/13/1988

Progress at the INPI

  1. Filing02/25/87
  2. Publication09/13/88
  3. Examination10/30/90
  4. Allowance12/20/94
  5. Grant07/25/95
  6. Expired07/29/08

The letters patent expired on 07/29/2008: 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: 09/13/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

The Dow Chemical Company

US

See this company's full portfolio

Inventors

D. A. (pessoa física)

US

G. B. (pessoa física)

US

G. M. (pessoa física)

US

P. L. (pessoa física)

US

Technical data

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Publicação do pedido de patente

#3.1

09/13/1988

RPI 934

Pedido de patente depositado

#2.1

07/07/1987

RPI 872

Carta-patente expirada

#21.1

Patente extinta em 25/02/2002

07/29/2008

RPI 1960

Concessão da patente

#16.1

07/25/1995

RPI 1286

Notificação para pagamento de retribuição

#13.1

05/02/1995

RPI 1274

Deferimento

#9.1

12/20/1994

RPI 1255

Conhecimento de parecer técnico

#7.1

07/20/1993

RPI 1181

Solicitação de exame técnico

#4.1

10/30/1990

RPI 1039

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