Arquivamento - Art. 36 §1° da LPI
#11.2
11/03/1999
RPI 1504
Application data
Number
PI9106276Type
Filing
Publication
PCT
US1991001065 The application was abandoned: the INPI technical office action was not answered in time (art. 36 of the Brazilian IP Act). The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 11/03/1999. We update with every new RPI gazette, published weekly.
Applicants
E. I. Du Pont de Nemours and Company
US
Inventors
G. L. (pessoa física)
US
J. W. (pessoa física)
NL
IPC Classification
Priority claims
US
500.259 · 03/27/1990
Abstract
Processo para separar cloreto de hidrogênio e tetrafluoroetileno, destilando, extrativamente, uma mistura de ambos em presença de um extrator que altera substancialmente as volatilidades relativas do cloreto de hidrogênio e do tetrafluoroetileno, por exemplo, um extrator orgânico peralogenado, como perfluorociclobutano, hexafluoropropileno ou 1,1,2-trifluoro-1,2,2-tricloroetano.
Publications in the Brazilian Industrial Property Gazette (RPI).
#11.2
11/03/1999
RPI 1504
#6.1
11/17/1998
RPI 1454
#4.1
09/28/1993
RPI 1191
#1.3
04/13/1993
RPI 1167
From the same holder
Same category
Patent monitoring
Receive alerts on INPI events, decisions, and expiry dates for your portfolio.