20.7
04/05/1988
RPI 911
Application data
Number
PI8005888Type
Filing
Publication
The letters patent expired on 11/07/1995: 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: 04/05/1988. We update with every new RPI gazette, published weekly.
Applicants
QT Engenharia e Equipamentos Ltda.
SP, BR
W. F. (pessoa física)
SP, BR
Inventors
F. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
04/05/1988
RPI 911
#20.1
07/29/1986
RPI 823
01/28/1986
RPI 797
#17.1
09/10/1985
RPI 777
#16.1
01/29/1985
RPI 745
#13.1
10/23/1984
RPI 731
#9.1
07/10/1984
RPI 716
#6.1
02/07/1984
RPI 694
#4.1
07/27/1982
RPI 614
#3.1
05/18/1982
RPI 604
#21.1
11/07/1995
RPI 1301
From the same holder
Same category
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