22.9
06/28/1983
RPI 662
The letters patent expired on 07/20/1993: 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: 06/28/1983. We update with every new RPI gazette, published weekly.
Applicants
IBM
Inventors
P. H. (pessoa física)
R. P. (pessoa física)
W. E. (pessoa física)
IPC Classification
Publications in the Brazilian Industrial Property Gazette (RPI).
06/28/1983
RPI 662
#16.1
04/26/1983
RPI 653
#13.1
01/25/1983
RPI 640
#9.1
09/21/1982
RPI 622
03/09/1982
RPI 594
02/16/1982
RPI 591
#21.1
07/20/1993
RPI 1181
From the same holder
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