Carta-patente expirada
#21.1
Patente extinta em 26/10/2009
12/26/2012
RPI 2190
Application data
Number
PI8905474Type
Filing
Publication
The letters patent expired on 12/26/2012: 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: 12/26/2012. We update with every new RPI gazette, published weekly.
Applicants
Imperial Chemical Industries PLC
GB
PPG INDUSTRIES OHIO, INC.
US
Inventors
R. R. (pessoa física)
US
IPC Classification
Priority claims
GB
8825315.8 · 10/28/1988
GB
8921423.3 · 09/22/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 26/10/2009
12/26/2012
RPI 2190
#25.1
Transferido de Imperial Chemical Industries PLC.
02/20/2001
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