20.4
10/31/1989
RPI 993
Application data
Number
PI8101655Type
Filing
Publication
The patent was granted on 03/25/1986 and later terminated for failure to pay the annuities. The technology is in the public domain in Brazil.
Talk to a specialistLatest action published by the INPI: 10/31/1989. We update with every new RPI gazette, published weekly.
Applicants
W.R. Grace & Co.
US
Inventors
B. M. (pessoa física)
V. D. (pessoa física)
IPC Classification
Priority claims
US
152.642 · 05/23/1980
Publications in the Brazilian Industrial Property Gazette (RPI).
10/31/1989
RPI 993
#16.1
03/25/1986
RPI 805
#13.1
12/17/1985
RPI 791
#9.1
08/13/1985
RPI 773
#6.1
10/30/1984
RPI 732
#4.1
12/27/1983
RPI 688
#3.1
01/12/1982
RPI 586
#18.2
08/23/1994
RPI 1238
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