Concessão da patente
#16.1
12/27/1988
RPI 949
Application data
Number
PI8403143Type
Filing
Publication
The letters patent expired on 07/08/2008: 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: 12/27/1988. We update with every new RPI gazette, published weekly.
Applicants
Minnesota Mining and Manufacturing Company
US
Inventors
B. E. (pessoa física)
D. H. (pessoa física)
G. T. (pessoa física)
R. D. (pessoa física)
Publications in the Brazilian Industrial Property Gazette (RPI).
#16.1
12/27/1988
RPI 949
#13.1
09/06/1988
RPI 933
#9.1
05/10/1988
RPI 916
#4.1
07/28/1987
RPI 875
#3.1
06/11/1985
RPI 764
#2.1
09/04/1984
RPI 724
#15.11
Procedimento automático de reclassificação. As classificações IPC anteriores eram: B24D 17/00; B24D 3/00; F16D 69/02.
03/27/2018
RPI 2464
#21.1
Patente extinta em 27/06/99
07/08/2008
RPI 1957
From the same holder
Same category
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