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Official data from INPI

DISPERSAO OU EMULSAO AQUOSA DE AGLUTINANTES FORMADORES DE FILMES

ConcedidaInvention Patent

Application data

Number

PI8207240

Type

Invention Patent

Filing

03/31/1981

Publication

06/21/1983

Progress at the INPI

  1. Filing03/31/81
  2. Publication06/21/83
  3. Examination10/18/83
  4. Allowance10/27/87
  5. Grant07/26/88
  6. Expired08/19/08

The letters patent expired on 08/19/2008: 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: 07/26/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Basf Farben + Fasern Aktiengesellschaft

DE

See this company's full portfolio

Inventors

D. [. (pessoa física)

Technical data

Priority claims

DE

P 31 12 694.4 · 03/31/1981

DE

PCT/82/00067 · 03/24/1982

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Concessão da patente

#16.1

07/26/1988

RPI 927

14.4

03/29/1988

RPI 910

14.7

03/29/1988

RPI 910

Notificação para pagamento de retribuição

#13.1

03/01/1988

RPI 906

Deferimento

#9.1

10/27/1987

RPI 888

Conhecimento de parecer técnico

#7.1

12/26/1984

RPI 740

Solicitação de exame técnico

#4.1

10/18/1983

RPI 678

Retificação da notificação da fase nacional - PCT

#1.3.1

08/23/1983

RPI 670

Notificação de entrada na fase nacional - PCT

#1.3

06/21/1983

RPI 661

Carta-patente expirada

#21.1

Patente extinta em 24/03/97

08/19/2008

RPI 1963

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