Arquivamento - Art. 33 da LPI
#11.1
10/10/1995
RPI 1297
Application data
Number
PI9203027Type
Filing
Publication
The application was abandoned: examination was not requested within the 36 months following the 08/04/1992 filing, the deadline set by art. 33 of the Brazilian IP Act. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 10/10/1995. We update with every new RPI gazette, published weekly.
Applicants
Elf Atochem North America, Inc.
US
Inventors
L. V. (pessoa física)
US
T. O. (pessoa física)
US
IPC Classification
Priority claims
US
07/742,780 · 08/08/1991
Abstract
A presente invenção se refere a butil-dietanol-amina terciária, sujeita à degeneração de cor que é purificada e estabilizada contra formação de cor, destilando-se a vácuo a dita amina a uma pressão na faixa de 1 a 50 mm Hg (1-50 torr) na ausência de um agente de redução.
Publications in the Brazilian Industrial Property Gazette (RPI).
#11.1
10/10/1995
RPI 1297
#3.1
03/30/1993
RPI 1165
#2.1
09/08/1992
RPI 1136
From the same holder
Same category
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