20.4
08/01/1989
RPI 980
Application data
Number
PI8304200Type
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: 08/01/1989. We update with every new RPI gazette, published weekly.
Applicants
Avdel Systems Limited
GB
Inventors
E. B. (pessoa física)
IPC Classification
No IPC classification.
Priority claims
GB
8222710 · 08/06/1982
GB
8309474 · 04/07/1983
Publications in the Brazilian Industrial Property Gazette (RPI).
08/01/1989
RPI 980
#16.1
06/28/1988
RPI 923
#13.1
03/01/1988
RPI 906
#9.1
11/03/1987
RPI 889
#6.1
03/10/1987
RPI 855
#4.1
06/10/1986
RPI 816
#3.1
03/13/1984
RPI 699
#2.1
10/18/1983
RPI 678
#21.1
Patente extinta em 04/08/98
07/01/2008
RPI 1956
From the same holder
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