Carta-patente expirada
#21.1
Patente extinta em 17/01/2010
05/21/2013
RPI 2211
Application data
Number
PI9000178Type
Filing
Publication
The letters patent expired on 05/21/2013: 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: 05/21/2013. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
R. E. (pessoa física)
US
T. S. (pessoa física)
US
IPC Classification
Priority claims
US
298,508 · 01/18/1989
Publications in the Brazilian Industrial Property Gazette (RPI).
#21.1
Patente extinta em 17/01/2010
05/21/2013
RPI 2211
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03/30/1993
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11/06/1990
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