Carta-patente expirada
#21.1
Patente extinta em 15/12/2009
01/02/2013
RPI 2191
Application data
Number
PI8906518Type
Filing
Publication
The letters patent expired on 01/02/2013: the term of protection has ended. The technology is in the public domain and may be freely used in Brazil.
Talk to a specialistLatest action published by the INPI: 01/02/2013. We update with every new RPI gazette, published weekly.
Applicants
ICI Americas, Inc.
US
Zeneca, Inc.
US
Inventors
J. S. (pessoa física)
US
R. N. (pessoa física)
US
IPC Classification
Priority claims
GB
8926493.1 · 11/23/1989
US
284,574 · 12/15/1988
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