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Official data from INPI

FORMULAÇÃO APERFEIÇOADA COM ALTO TEOR DE SÓLIDOS PARA REVESTIMENTO DE PAPEL

DeferidaInvention Patent

Application data

Number

PI8406895

Type

Invention Patent

Filing

05/16/1984

Publication

04/16/1985

Progress at the INPI

  1. Filing05/16/84
  2. Publication04/16/85
  3. Examination06/16/87
  4. Allowance12/05/89
  5. Grant08/28/90
  6. Terminated07/04/95

The patent was granted on 08/28/1990 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 12/05/1989. 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. L. (pessoa física)

US

R. G. (pessoa física)

US

Technical data

Priority claims

US

494.750 · 05/16/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Deferimento

#9.1

12/05/1989

RPI 998

Exigência - art. 36 da LPI

#6.1

11/16/1988

RPI 943

Solicitação de exame técnico

#4.1

06/16/1987

RPI 869

Notificação de entrada na fase nacional - PCT

#1.3

04/16/1985

RPI 756

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. A classificação IPC anterior era C09D 3/36.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

07/04/1995

RPI 1283

Concessão da patente

#16.1

08/28/1990

RPI 1030

Notificação para pagamento de retribuição

#13.1

04/10/1990

RPI 1013

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