20.4
04/05/1988
RPI 911
Application data
Number
PI8301087Type
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: 04/05/1988. We update with every new RPI gazette, published weekly.
Applicants
J. S. Staedtler Gmbh & CO.
DE
Inventors
B. E. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
04/05/1988
RPI 911
#16.1
09/30/1986
RPI 832
#13.1
07/01/1986
RPI 819
#9.1
03/11/1986
RPI 803
03/26/1985
RPI 753
#4.1
01/31/1984
RPI 693
#3.1
11/22/1983
RPI 683
#2.1
04/19/1983
RPI 652
#21.1
Patente extinta em 04/03/98
07/01/2008
RPI 1956
From the same holder
Same category
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