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Official data from INPI

PROCESSO DE ULTRAFILTRAÇÃO COM CONTROLE DE ESPUMA

Em AnáliseInvention Patent

Application data

Number

PI8606739

Type

Invention Patent

Filing

03/21/1986

Publication

08/11/1987

Progress at the INPI

  1. Filing03/21/86
  2. Publication08/11/87
  3. Examination08/16/88
  4. Allowance05/28/91
  5. Grant11/26/91
  6. Terminated10/03/95

The patent was granted on 11/26/1991 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: 08/16/1988. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

U. C. (pessoa física)

US

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Inventors

P. A. (pessoa física)

US

Technical data

Priority claims

US

714.831 · 03/22/1985

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Solicitação de exame técnico

#4.1

08/16/1988

RPI 930

Notificação de entrada na fase nacional - PCT

#1.3

08/11/1987

RPI 877

Republicação - classificação IPC

#15.11

Procedimento automático de reclassificação. As classificações IPC anteriores eram: B01D 19/04; B01D 13/00; C08G 77/46.

03/27/2018

RPI 2464

Anuidade - prazo legal encerrado

#18.2

10/03/1995

RPI 1296

Concessão da patente

#16.1

11/26/1991

RPI 1095

Notificação para pagamento de retribuição

#13.1

09/10/1991

RPI 1084

Deferimento

#9.1

05/28/1991

RPI 1069

Exigência - art. 36 da LPI

#6.1

11/13/1990

RPI 1041

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