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Official data from INPI

PROCESSO PARA SEPARAR E RECUPERAR MONÔMEROS DE ISOCIANATO DE CONCENTRADOS DE ISOCIANATO

Arquivada/ExtintaInvention PatentPCT · US1990000815

Application data

Number

PI9005679

Type

Invention Patent

Filing

02/21/1990

Publication

08/06/1991

PCT

US1990000815

Progress at the INPI

  1. Filing02/21/90
  2. Publication08/06/91
  3. Examination04/27/93
  4. Allowance08/31/99
  5. Grant05/30/00
  6. Expired01/08/13

The letters patent expired on 01/08/2013: 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: 01/08/2013. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

M. C. (pessoa física)

US

T. C. (pessoa física)

US

See this company's full portfolio

Inventors

G. S. (pessoa física)

US

L. A. (pessoa física)

US

L. R. (pessoa física)

US

S. D. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

319,011 · 03/03/1989

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Carta-patente expirada

#21.1

Patente extinta em 30/05/2010

01/08/2013

RPI 2192

Concessão da patente

#16.1

05/30/2000

RPI 1534

Deferimento

#9.1

08/31/1999

RPI 1495

Exigência - art. 36 da LPI

#6.1

12/22/1998

RPI 1459

Exigência - art. 36 da LPI

#6.1

09/16/1997

RPI 1398

Solicitação de exame técnico

#4.1

04/27/1993

RPI 1169

Notificação de entrada na fase nacional - PCT

#1.3

08/06/1991

RPI 1079

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