(11) 98705-3426
TrademarkIQ iconTrademarkIQ
Back to search
Official data from INPI

PURIFICAÇÃO DE ÉTERES DIMETÍLICOS FLUORADOS

ArquivadaInvention PatentPCT · US1996080221

Application data

Number

PI9608973

Type

Invention Patent

Filing

05/31/1996

Publication

06/29/1999

PCT

US1996080221

Progress at the INPI

  1. Filing05/31/96
  2. Publication06/29/99
  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

See this company's full portfolio

Inventors

G. O. (pessoa física)

US

R. B. (pessoa física)

US

Technical data

IPC Classification

Priority claims

US

08/466.096 · 06/06/1995

Abstract

"PURIFICAÇÃO DE ÉSTERES DIMETÍLICOS FLUORADOS". Processo para a purificação de difluormetóxi dufluormetano.O difluoermetóxi difluormetano é exposto completamente as impurezas. Em uma outra modalidade, a presente invenção opcionalmente inclui processos para inibir preferencialmente a formação de CF~ 2~HOCCL~ 3~ na formação do difluormetóxi difluormetano, antes de expor o difluormetóxi difluormetano às peneiras moleculares.

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

06/29/1999

RPI 1486

Related

Same category

Patent monitoring

Track this patent in real time.

Receive alerts on INPI events, decisions, and expiry dates for your portfolio.