20.7
10/06/1987
RPI 885
Application data
Number
PI8302129Type
Filing
Publication
The letters patent expired on 07/01/2008: 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: 10/06/1987. We update with every new RPI gazette, published weekly.
Applicants
R. C. (pessoa física)
US
Inventors
L. A. (pessoa física)
M. W. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
10/06/1987
RPI 885
#16.1
12/31/1985
RPI 793
#13.1
10/22/1985
RPI 783
#9.1
07/02/1985
RPI 767
#6.1
02/26/1985
RPI 749
#4.1
03/13/1984
RPI 699
#3.1
12/27/1983
RPI 688
#2.1
06/14/1983
RPI 660
#21.1
Patente extinta em 26/04/98
07/01/2008
RPI 1956
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