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Official data from INPI

ESTABILIZAÇÃO DE NITRILA.

ArquivadaInvention PatentPCT · US1996008234

Application data

Number

PI9609141

Type

Invention Patent

Filing

05/31/1996

Publication

02/23/1999

PCT

US1996008234

Progress at the INPI

  1. Filing05/31/96
  2. Publication02/23/99
  3. Abandoned
  4. Allowance
  5. Grant
  6. In force

The application was abandoned: examination was not requested within the 36 months following the 05/31/1996 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.

Talk to a specialist

Latest action published by the INPI: 10/02/2001. We update with every new RPI gazette, published weekly.

Applicants and inventors

Applicants

Hampshire Chemical Corp.

US

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Inventors

A. L. (pessoa física)

US

G. O. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

08/466.095 · 06/06/1995

Abstract

"ESTABILIZAÇÃO DE NITRILA". A presente invenção refere-se a um processo para estabilizar nitrilas, e , em particular, iminodiacetonitrila (IDAN), etilenodiamina triaceto nitrila (EDTN), e, especialmente, nitrilotriacetitonitrila (NTAN). A presente invenção também diz respeito à nitrila estalibilizada resultante. O processo da presente invenção compreende contatar a nitrila com uma mistura de sílica e alumina, zeólitos ou vidro.

Prosecution history

Publications in the Brazilian Industrial Property Gazette (RPI).

Arquivamento - Art. 33 da LPI

#11.1

10/02/2001

RPI 1604

Notificação de entrada na fase nacional - PCT

#1.3

02/23/1999

RPI 1468

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