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Official data from INPI

ESPUMA DE POLIORGANOSSILOXANA E PROCESSO PARA A PREPARAÇÃO DA MESMA.

Em ExigênciaInvention Patent

Application data

Number

PI8400006

Type

Invention Patent

Filing

01/02/1984

Publication

07/31/1984

Progress at the INPI

  1. Filing01/02/84
  2. Publication07/31/84
  3. Examination07/08/86
  4. Allowance03/20/90
  5. Grant09/25/90
  6. Terminated05/30/95

The patent was granted on 09/25/1990 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: 03/28/1989. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

D. C. (pessoa física)

US

See this company's full portfolio

Inventors

J. H. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

455.431 · 01/03/1983

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Exigência - art. 36 da LPI

#6.1

03/28/1989

RPI 962

Solicitação de exame técnico

#4.1

07/08/1986

RPI 820

Publicação do pedido de patente

#3.1

07/31/1984

RPI 719

Pedido de patente depositado

#2.1

03/20/1984

RPI 700

Anuidade - prazo legal encerrado

#18.2

05/30/1995

RPI 1278

Republicação - classificação IPC

#15.11

10/01/1991

RPI 1087

Concessão da patente

#16.1

09/25/1990

RPI 1034

Notificação para pagamento de retribuição

#13.1

07/31/1990

RPI 1026

Deferimento

#9.1

03/20/1990

RPI 1010

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