Pedido de patente depositado
#2.1
04/11/1989
RPI 964
Application data
Number
PI8806373Type
Filing
Publication
The letters patent expired on 09/02/2008: 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: 04/11/1989. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Minnesota Mining And Manufacturing Company
US
Inventors
K. R. (pessoa física)
US
W. S. (pessoa física)
US
IPC Classification
Priority claims
US
131,913 · 12/11/1987
US
193,736 · 05/12/1988
Publications in the Brazilian Industrial Property Gazette (RPI).
#2.1
04/11/1989
RPI 964
#21.1
Patente extinta em 02/12/2003
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