Carta-patente expirada
#21.1
Patente extinta em 01/10/2010
05/28/2013
RPI 2212
Application data
Number
PI9007699Type
Filing
Publication
PCT
US1990005582 The letters patent expired on 05/28/2013: 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: 05/28/2013. We update with every new RPI gazette, published weekly.
Applicants
E. C. (pessoa física)
US
Union Oil Company of California
US
Inventors
C. W. (pessoa física)
US
M. H. (pessoa física)
US
IPC Classification
Priority claims
US
415,874 · 10/02/1989
US
440,024 · 11/21/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 01/10/2010
05/28/2013
RPI 2212
#25.1
Transferido de: Union Oil Company Of California
05/24/2005
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