Concessão da patente
#16.1
06/28/1988
RPI 923
The letters patent expired on 03/26/1996: 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: 06/28/1988. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
K. D. (pessoa física)
N. P. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
06/28/1988
RPI 923
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12/08/1987
RPI 894
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06/05/1984
RPI 711
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11/08/1983
RPI 681
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03/26/1996
RPI 1321
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